CVE-2026-84361
Severity not reportedComposer is a dependency Manager for the PHP language.
Composer is a dependency Manager for the PHP language. From 1.0 until 2.2.30 and 2.10.3, a malicious dependency package from a custom Composer repository or an untrusted composer.lock file could set source.type to perforce and source.url to an rsh: or jsh: P4PORT value. When the Perforce p4 client was installed and Composer installed the package from source through composer install or composer update, including --prefer-source, Composer\Util\Perforce passed the address to p4 without validation, causing p4 to run a local command with the privileges of the user or CI account. Packagist.org does not permit Perforce source metadata. This issue is fixed in versions 2.2.30 and 2.10.3.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/composer/composer/commit/0aac50528e83ed635cf788333635897469440220 security-advisories@github.com
- https://github.com/composer/composer/commit/199ad81a9cc6a2a5164ad79a8da26b2e19e521af security-advisories@github.com
- https://github.com/composer/composer/releases/tag/2.10.3 security-advisories@github.com
- https://github.com/composer/composer/releases/tag/2.2.30 security-advisories@github.com
- https://github.com/composer/composer/security/advisories/GHSA-rvx4-ffvw-m9q3 security-advisories@github.com