{ "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-2026-40176.json" } ], "title": "composer: command injection via malicious Perforce repository definition", "tracking": { "current_release_date": "2026-06-30T03:54:27+00:00", "generator": { "date": "2026-06-30T03:54:27+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.0" } }, "id": "CVE-2026-40176", "initial_release_date": "2026-04-15T20:47:39.839000+00:00", "revision_history": [ { "date": "2026-04-15T20:47:39.839000+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-04-28T21:01:42+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-06-30T03:54:27+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-2026-40176", "cwe": { "id": "CWE-78", "name": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')" }, "discovery_date": "2026-04-15T21:00:48.175830+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2458828" } ], "notes": [ { "category": "description", "text": "A flaw was found in Composer. `Perforce::generateP4Command()` constructs shell commands by interpolating user-supplied Perforce connection parameters (port, user, client) without proper escaping, allowing an attacker to inject arbitrary commands through these values in a malicious composer.json declaring a Perforce VCS repository.", "title": "Vulnerability description" }, { "category": "summary", "text": "composer: command injection via malicious Perforce repository definition", "title": "Vulnerability summary" }, { "category": "other", "text": "To exploit this vulnerability, a user needs to run Composer commands on untrusted projects with attacker-supplied composer.json files. VCS repositories are only loaded from the root composer.json or the composer config directory, so this issue cannot be exploited through composer.json files of packages installed as dependencies. This issue can cause arbitrary command execution but it is limited to the context of the user running Composer. 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-2026-40176" }, { "category": "external", "summary": "RHBZ#2458828", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458828" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-40176", "url": "https://www.cve.org/CVERecord?id=CVE-2026-40176" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-40176", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40176" }, { "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-wg36-wvj6-r67p", "url": "https://github.com/composer/composer/security/advisories/GHSA-wg36-wvj6-r67p" } ], "release_date": "2026-04-15T20:47:39.839000+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 vulnerability, only run Composer commands on projects from trusted sources. Also, inspect composer.json files before running Composer commands on them, specifically checking that Perforce-related fields contain valid values.", "product_ids": [ "Red Hat Hardened Images:composer-main@noarch", "Red Hat Hardened Images:composer-main@src" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/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 repository definition" } ] }