{ "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-2026-40261.json" } ], "title": "composer: command injection via malicious Perforce source reference/url", "tracking": { "current_release_date": "2026-06-30T03:54:41+00:00", "generator": { "date": "2026-06-30T03:54:41+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.0" } }, "id": "CVE-2026-40261", "initial_release_date": "2026-04-15T20:56:32.182000+00:00", "revision_history": [ { "date": "2026-04-15T20:56:32.182000+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-04-29T12:49:39+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-06-30T03:54:41+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Hardened Images", "product": { "name": "Red Hat Hardened Images", "product_id": "Red Hat Hardened Images", "product_identification_helper": { "cpe": "cpe:/a:redhat:hummingbird:1" } } } ], "category": "product_family", "name": "Red Hat Hardened Images" }, { "branches": [ { "category": "product_version", "name": "composer-main@noarch", "product": { "name": "composer-main@noarch", "product_id": "composer-main@noarch", "product_identification_helper": { "purl": "pkg:rpm/redhat/composer@2.9.7-1.hum1?arch=noarch&distro=hummingbird-20251124&repository_id=public-hummingbird-x86_64-rpms" } } } ], "category": "architecture", "name": "noarch" }, { "branches": [ { "category": "product_version", "name": "composer-main@src", "product": { "name": "composer-main@src", "product_id": "composer-main@src", "product_identification_helper": { "purl": "pkg:rpm/redhat/composer@2.9.7-1.hum1?arch=src&distro=hummingbird-20251124&repository_id=public-hummingbird-source-rpms" } } } ], "category": "architecture", "name": "src" } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "composer-main@noarch as a component of Red Hat Hardened Images", "product_id": "Red Hat Hardened Images:composer-main@noarch" }, "product_reference": "composer-main@noarch", "relates_to_product_reference": "Red Hat Hardened Images" }, { "category": "default_component_of", "full_product_name": { "name": "composer-main@src as a component of Red Hat Hardened Images", "product_id": "Red Hat Hardened Images:composer-main@src" }, "product_reference": "composer-main@src", "relates_to_product_reference": "Red Hat Hardened Images" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-40261", "cwe": { "id": "CWE-78", "name": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')" }, "discovery_date": "2026-04-15T22:00:54.256960+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2458841" } ], "notes": [ { "category": "description", "text": "A flaw was found in Composer. `Perforce::syncCodeBase()` appends the `$sourceReference` parameter to a shell command without proper escaping, allowing an attacker to inject arbitrary commands through a crafted source reference containing shell metacharacters.", "title": "Vulnerability description" }, { "category": "summary", "text": "composer: command injection via malicious Perforce source reference/url", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue can be exploited via any package served by a compromised or malicious Composer repository when installing or updating dependencies from source, including the default behavior when installing dev-prefixed versions. Exploitation results in arbitrary command execution. Due to these reasons, this flaw has been rated with an important severity.", "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": [ "Red Hat Hardened Images:composer-main@noarch", "Red Hat Hardened Images:composer-main@src" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-40261" }, { "category": "external", "summary": "RHBZ#2458841", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458841" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-40261", "url": "https://www.cve.org/CVERecord?id=CVE-2026-40261" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-40261", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40261" }, { "category": "external", "summary": "https://github.com/composer/composer/releases/tag/2.9.6", "url": "https://github.com/composer/composer/releases/tag/2.9.6" }, { "category": "external", "summary": "https://github.com/composer/composer/security/advisories/GHSA-gqw4-4w2p-838q", "url": "https://github.com/composer/composer/security/advisories/GHSA-gqw4-4w2p-838q" } ], "release_date": "2026-04-15T20:56:32.182000+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-04-14T17:59:27+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/", "product_ids": [ "Red Hat Hardened Images:composer-main@noarch", "Red Hat Hardened Images:composer-main@src" ], "url": "https://access.redhat.com/errata/RHSA-2026:8165" }, { "category": "workaround", "details": "To mitigate this issue, only run Composer commands on projects and dependencies from trusted sources. Also, use the '--prefer-dist' or the 'preferred-install: dist' configuration setting to prevent Composer from installing dependencies from source.", "product_ids": [ "Red Hat Hardened Images:composer-main@noarch", "Red Hat Hardened Images:composer-main@src" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "Red Hat Hardened Images:composer-main@noarch", "Red Hat Hardened Images:composer-main@src" ] } ], "threats": [ { "category": "impact", "details": "Important", "product_ids": [ "Red Hat Hardened Images:composer-main@noarch", "Red Hat Hardened Images:composer-main@src" ] } ], "title": "composer: command injection via malicious Perforce source reference/url" } ] }