{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright © Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for thunderbird is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "Mozilla Thunderbird is a standalone mail and newsgroup client.\n\nSecurity Fix(es):\n\n* firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-4701)\n\n* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 (CVE-2026-4721)\n\n* firefox: thunderbird: Privilege escalation in the Netmonitor component (CVE-2026-4717)\n\n* firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-4688)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4706)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-4695)\n\n* firefox: thunderbird: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (CVE-2026-4689)\n\n* firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-4698)\n\n* firefox: thunderbird: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component (CVE-2026-4716)\n\n* firefox: thunderbird: Race condition, use-after-free in the Graphics: WebRender component (CVE-2026-4684)\n\n* firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component (CVE-2026-4705)\n\n* firefox: thunderbird: Uninitialized memory in the Graphics: Canvas2D component (CVE-2026-4715)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4685)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component (CVE-2026-4714)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-4709)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component (CVE-2026-4710)\n\n* firefox: thunderbird: Information disclosure in the Widget: Cocoa component (CVE-2026-4712)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-4697)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-4713)\n\n* firefox: thunderbird: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (CVE-2026-4690)\n\n* firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-4711)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4686)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-4708)\n\n* firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-4691)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-4699)\n\n* firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-4696)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component (CVE-2026-4693)\n\n* firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component (CVE-2026-4718)\n\n* firefox: thunderbird: JIT miscompilation in the JavaScript Engine component (CVE-2026-4702)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Text component (CVE-2026-4719)\n\n* firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics component (CVE-2026-4694)\n\n* firefox: thunderbird: Sandbox escape in the Responsive Design Mode component (CVE-2026-4692)\n\n* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 (CVE-2026-4720)\n\n* firefox: thunderbird: Mitigation bypass in the Networking: HTTP component (CVE-2026-4700)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4707)\n\n* firefox: thunderbird: Denial-of-service in the WebRTC: Signaling component (CVE-2026-4704)\n\n* firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component (CVE-2026-4687)\n\n* thunderbird: Out of bounds read in IMAP parsing (CVE-2026-4371)\n\n* thunderbird: Spoofing issue in Thunderbird (CVE-2026-3889)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2026:8289", "url": "https://access.redhat.com/errata/RHSA-2026:8289" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2450710", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450710" }, { "category": "external", "summary": "2450711", 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"thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "relates_to_product_reference": "AppStream-8.6.0.Z.TUS" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-3889", "cwe": { "id": "CWE-20", "name": "Improper Input Validation" }, "discovery_date": "2026-03-24T21:02:22.518293+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2451006" } ], "notes": [ { "category": "description", "text": "A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nSpoofing issue in Thunderbird", "title": "Vulnerability description" }, { "category": "summary", "text": "thunderbird: Spoofing issue in Thunderbird", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-3889" }, { "category": "external", "summary": "RHBZ#2451006", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451006" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-3889", "url": "https://www.cve.org/CVERecord?id=CVE-2026-3889" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-3889", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3889" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-3889", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-3889" } ], "release_date": "2026-03-24T20:27:14.437000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", 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"REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nA malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking sensitive data.", "title": "Vulnerability description" }, { "category": "summary", "text": "thunderbird: Out of bounds read in IMAP parsing", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nRace condition, use-after-free in the Graphics: WebRender component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Race condition, use-after-free in the Graphics: WebRender component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4684" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4684", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4684" } ], "release_date": "2026-03-24T12:30:20.420000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Graphics: Canvas2D component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4685" }, { "category": "external", "summary": "RHBZ#2450724", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450724" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4685", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4685" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4685", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4685" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4685", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4685" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4685", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4685" } ], "release_date": "2026-03-24T12:30:21.064000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component" }, { "cve": "CVE-2026-4686", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2026-03-24T13:02:40.605154+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450734" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4686" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4686", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4686" } ], "release_date": "2026-03-24T12:30:21.639000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component" }, { "cve": "CVE-2026-4687", "cwe": { "id": "CWE-501", "name": "Trust Boundary Violation" }, "discovery_date": "2026-03-24T13:03:48.511518+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450757" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4687" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4687", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4687" } ], "release_date": "2026-03-24T12:30:22.179000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4688" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4688", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4688" } ], "release_date": "2026-03-24T12:30:22.710000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4689" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4689", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4689" } ], "release_date": "2026-03-24T12:30:23.260000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4690" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4690", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4690" } ], "release_date": "2026-03-24T12:30:23.812000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nUse-after-free in the CSS Parsing and Computation component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4691" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4691", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4691" } ], "release_date": "2026-03-24T12:30:24.376000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video: Playback component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4693" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4693", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4693" } ], "release_date": "2026-03-24T12:30:25.391000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component" }, { "cve": "CVE-2026-4694", "cwe": { "id": "CWE-190", "name": "Integer Overflow or Wraparound" }, "discovery_date": "2026-03-24T13:03:21.493763+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450747" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions, integer overflow in the Graphics component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4694" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4694", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4694" } ], "release_date": "2026-03-24T12:30:25.919000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics component" }, { "cve": "CVE-2026-4695", "cwe": { "id": "CWE-131", "name": "Incorrect Calculation of Buffer Size" }, "discovery_date": "2026-03-24T13:01:38.609710+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450715" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video: Web Codecs component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4695" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4695", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4695" } ], "release_date": "2026-03-24T12:30:26.409000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component" }, { "cve": "CVE-2026-4696", "cwe": { "id": "CWE-825", "name": "Expired Pointer Dereference" }, "discovery_date": "2026-03-24T13:03:00.059788+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450740" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nUse-after-free in the Layout: Text and Fonts component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component" }, { "cve": "CVE-2026-4697", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2026-03-24T13:02:22.985141+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450729" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video: Web Codecs component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4697" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4697", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4697" } ], "release_date": "2026-03-24T12:30:27.383000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component" }, { "cve": "CVE-2026-4698", "cwe": { "id": "CWE-733", "name": "Compiler Optimization Removal or Modification of Security-critical Code" }, "discovery_date": "2026-03-24T13:01:51.367869+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450719" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4698" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4698", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4698" } ], "release_date": "2026-03-24T12:30:27.865000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Layout: Text and Fonts component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4699" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4699", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4699" } ], "release_date": "2026-03-24T12:30:28.441000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component" }, { "cve": "CVE-2026-4700", "cwe": { "id": "CWE-444", "name": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')" }, "discovery_date": "2026-03-24T13:03:33.207884+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450752" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4700" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4700", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4700" } ], "release_date": "2026-03-24T12:30:28.913000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nUse-after-free in the JavaScript Engine component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Use-after-free in the JavaScript Engine component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4701" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4701", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4701" } ], "release_date": "2026-03-24T12:30:29.700000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Use-after-free in the JavaScript Engine component" }, { "cve": "CVE-2026-4702", "cwe": { "id": "CWE-733", "name": "Compiler Optimization Removal or Modification of Security-critical Code" }, "discovery_date": "2026-03-24T13:03:12.985864+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450744" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nJIT miscompilation in the JavaScript Engine component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: JIT miscompilation in the JavaScript Engine component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4702" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4702", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4702" } ], "release_date": "2026-03-24T12:30:30.743000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: JIT miscompilation in the JavaScript Engine component" }, { "cve": "CVE-2026-4704", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "discovery_date": "2026-03-24T13:03:45.532679+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450756" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nDenial-of-service in the WebRTC: Signaling component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Denial-of-service in the WebRTC: Signaling component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4704" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4704", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4704" } ], "release_date": "2026-03-24T12:30:32.214000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Denial-of-service in the WebRTC: Signaling component" }, { "cve": "CVE-2026-4705", "cwe": { "id": "CWE-475", "name": "Undefined Behavior for Input to API" }, "discovery_date": "2026-03-24T13:02:00.517411+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450722" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4705" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4705", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4705" } ], "release_date": "2026-03-24T12:30:32.731000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Graphics: Canvas2D component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4706" }, { "category": "external", "summary": "RHBZ#2450714", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450714" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4706", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4706" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4706", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4706" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4706", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4706" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4706", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4706" } ], "release_date": "2026-03-24T12:30:33.263000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component" }, { "cve": "CVE-2026-4707", "cwe": { "id": "CWE-823", "name": "Use of Out-of-range Pointer Offset" }, "discovery_date": "2026-03-24T13:03:42.010687+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450755" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Graphics: Canvas2D component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4707" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4707", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4707" } ], "release_date": "2026-03-24T12:30:33.906000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component" }, { "cve": "CVE-2026-4708", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2026-03-24T13:02:44.732071+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450735" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Graphics component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Graphics component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4708" }, { "category": "external", "summary": "RHBZ#2450735", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450735" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4708", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4708" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4708", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4708" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4708", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4708" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4708", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4708" } ], "release_date": "2026-03-24T12:30:34.423000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics component" }, { "cve": "CVE-2026-4709", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2026-03-24T13:02:13.561633+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450726" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video: GMP component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4709" }, { "category": "external", "summary": "RHBZ#2450726", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450726" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4709", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4709" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4709", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4709" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4709", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4709" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4709", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4709" } ], "release_date": "2026-03-24T12:30:35.375000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component" }, { "cve": "CVE-2026-4710", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2026-03-24T13:02:16.791777+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450727" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4710" }, { "category": "external", "summary": "RHBZ#2450727", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450727" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4710", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4710" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4710", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4710" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4710", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4710" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4710", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4710" } ], "release_date": "2026-03-24T12:30:35.852000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component" }, { "cve": "CVE-2026-4711", "cwe": { "id": "CWE-825", "name": "Expired Pointer Dereference" }, "discovery_date": "2026-03-24T13:02:36.416841+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450733" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nUse-after-free in the Widget: Cocoa component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Use-after-free in the Widget: Cocoa component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4711" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4711", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4711" } ], "release_date": "2026-03-24T12:30:36.392000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Use-after-free in the Widget: Cocoa component" }, { "cve": "CVE-2026-4712", "cwe": { "id": "CWE-359", "name": "Exposure of Private Personal Information to an Unauthorized Actor" }, "discovery_date": "2026-03-24T13:02:19.943989+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450728" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nInformation disclosure in the Widget: Cocoa component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Information disclosure in the Widget: Cocoa component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4712" }, { "category": "external", "summary": "RHBZ#2450728", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450728" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4712", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4712" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4712", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4712" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4712", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4712" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4712", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4712" } ], "release_date": "2026-03-24T12:30:37.333000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Information disclosure in the Widget: Cocoa component" }, { "cve": "CVE-2026-4713", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2026-03-24T13:02:25.944668+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450730" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Graphics component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Graphics component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4713" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4713", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4713" } ], "release_date": "2026-03-24T12:30:37.800000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics component" }, { "cve": "CVE-2026-4714", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "discovery_date": "2026-03-24T13:02:10.447955+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450725" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4714" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4714", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4714" } ], "release_date": "2026-03-24T12:30:38.311000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component" }, { "cve": "CVE-2026-4715", "cwe": { "id": "CWE-824", "name": "Access of Uninitialized Pointer" }, "discovery_date": "2026-03-24T13:02:04.455518+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450723" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nUninitialized memory in the Graphics: Canvas2D component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Uninitialized memory in the Graphics: Canvas2D component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4715" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4715", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4715" } ], "release_date": "2026-03-24T12:30:38.831000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Uninitialized memory in the Graphics: Canvas2D component" }, { "cve": "CVE-2026-4716", "cwe": { "id": "CWE-824", "name": "Access of Uninitialized Pointer" }, "discovery_date": "2026-03-24T13:01:54.479414+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450720" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions, uninitialized memory in the JavaScript Engine component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4716" }, { "category": "external", "summary": "RHBZ#2450720", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450720" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4716", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4716" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4716", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4716" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4716", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4716" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4716", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4716" } ], "release_date": "2026-03-24T12:30:39.453000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "firefox: thunderbird: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component" }, { "cve": "CVE-2026-4717", "cwe": { "id": "CWE-266", "name": "Incorrect Privilege Assignment" }, "discovery_date": "2026-03-24T13:01:26.308051+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450712" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4717" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4717", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4717" } ], "release_date": "2026-03-24T12:30:40.175000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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The Mozilla Foundation's Security Advisory describes the following issue:\nUndefined behavior in the WebRTC: Signaling component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4718" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4718", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4718" } ], "release_date": "2026-03-24T12:30:42.279000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.4, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Low" } ], "title": "firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component" }, { "cve": "CVE-2026-4719", "cwe": { "id": "CWE-805", "name": "Buffer Access with Incorrect Length Value" }, "discovery_date": "2026-03-24T13:03:18.510994+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450746" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Graphics: Text component", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Text component", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4719" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4719", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4719" } ], "release_date": "2026-03-24T12:30:42.762000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", 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"AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Low" } ], "title": "firefox: thunderbird: Incorrect boundary conditions in the Graphics: Text component" }, { "cve": "CVE-2026-4720", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" }, "discovery_date": "2026-03-24T13:03:30.400947+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450751" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nMemory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", 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"AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4720" }, { "category": "external", "summary": "RHBZ#2450751", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450751" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4720", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4720" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4720", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4720" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4720", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4720" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4720", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4720" } ], "release_date": "2026-03-24T12:30:43.271000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.aarch64", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.ppc64le", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.s390x", "AppStream-8.6.0.Z.E4S:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.TUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149" }, { "cve": "CVE-2026-4721", "cwe": { "id": "CWE-825", "name": "Expired Pointer Dereference" }, "discovery_date": "2026-03-24T13:01:21.825225+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450711" } ], "notes": [ { "category": "description", "text": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nMemory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.", "title": "Vulnerability description" }, { "category": "summary", "text": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", 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"https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4721", "url": "https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4721" }, { "category": "external", "summary": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4721", "url": "https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4721" } ], "release_date": "2026-03-24T12:30:44.312000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-15T10:48:56+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", 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"AppStream-8.6.0.Z.TUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.TUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:8289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.src", "AppStream-8.6.0.Z.AUS:thunderbird-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debuginfo-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.AUS:thunderbird-debugsource-0:140.9.0-1.el8_6.x86_64", "AppStream-8.6.0.Z.E4S:thunderbird-0:140.9.0-1.el8_6.aarch64", 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