{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_vex", "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": "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": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48748.json" } ], "title": "netty: Netty: Denial of Service due to memory exhaustion in HTTP/3 codec", "tracking": { "current_release_date": "2026-06-30T03:48:32+00:00", "generator": { "date": "2026-06-30T03:48:32+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.0" } }, "id": "CVE-2026-48748", "initial_release_date": "2026-06-12T14:45:04.763000+00:00", "revision_history": [ { "date": "2026-06-12T14:45:04.763000+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-06-13T02:34:19.559037+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-06-30T03:48:32+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat build of Apache Camel - HawtIO 4", "product": { "name": "Red Hat build of Apache Camel - HawtIO 4", "product_id": "red_hat_build_of_apache_camel_-_hawtio_4", "product_identification_helper": { "cpe": "cpe:/a:redhat:apache_camel_hawtio:4" } } } ], "category": "product_family", "name": "Red Hat build of Apache Camel - HawtIO 4" }, { "category": "product_version", "name": "netty-codec-http3", "product": { "name": "netty-codec-http3", "product_id": "netty-codec-http3", "product_identification_helper": { "purl": "pkg:maven/io.netty/netty-codec-http3" } } } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "netty-codec-http3 as a component of Red Hat build of Apache Camel - HawtIO 4", "product_id": "red_hat_build_of_apache_camel_-_hawtio_4:netty-codec-http3" }, "product_reference": "netty-codec-http3", "relates_to_product_reference": "red_hat_build_of_apache_camel_-_hawtio_4" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-48748", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "discovery_date": "2026-06-12T16:02:53.517169+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2488441" } ], "notes": [ { "category": "description", "text": "A flaw was found in Netty. A remote attacker can exploit a memory exhaustion vulnerability in the Netty HTTP/3 codec by creating an infinite number of blocked streams. This can lead to an Out Of Memory (OOM) error, resulting in a Denial of Service (DoS) for the affected system.", "title": "Vulnerability description" }, { "category": "summary", "text": "netty: Netty: Denial of Service due to memory exhaustion in HTTP/3 codec", "title": "Vulnerability summary" }, { "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": { "under_investigation": [ "red_hat_build_of_apache_camel_-_hawtio_4:netty-codec-http3" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-48748" }, { "category": "external", "summary": "RHBZ#2488441", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488441" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-48748", "url": "https://www.cve.org/CVERecord?id=CVE-2026-48748" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48748", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48748" }, { "category": "external", "summary": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final", "url": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final" }, { "category": "external", "summary": "https://github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6", "url": "https://github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6" } ], "release_date": "2026-06-12T14:45:04.763000+00:00", "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": [ "red_hat_build_of_apache_camel_-_hawtio_4:netty-codec-http3" ] } ], "threats": [ { "category": "impact", "details": "Important", "product_ids": [ "red_hat_build_of_apache_camel_-_hawtio_4:netty-codec-http3" ] } ], "title": "netty: Netty: Denial of Service due to memory exhaustion in HTTP/3 codec" } ] }