What’s Vulnerable › Vulnerabilities
CVE-2024-35241: Composer vulnerable to command injection via malicious git branch name
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-06-10 · updated 2026-06-17
- Weakness: CWE-77
Description
Composer is a dependency manager for PHP. On the 2.x branch prior to versions 2.2.24 and 2.7.7, the `status`, `reinstall` and `remove` commands with packages installed from source via git containing specially crafted branch names in the repository can be used to execute code. Patches for this issue are available in version 2.2.24 for 2.2 LTS or 2.7.7 for mainline. As a workaround, avoid installing dependencies via git by using `--prefer-dist` or the `preferred-install: dist` config setting.
Affected products
- Fedoraproject Fedora: 39, 40
- composer: from 2.0 before 2.2.24; from 2.3 before 2.7.7 — fixed in 2.2.24, 2.7.7
How to fix
Upgrade to a fixed version: composer 2.2.24, 2.7.7. Check the vendor advisory for mitigations.
References
- https://github.com/composer/composer/commit/b93fc6ca437da35ae73d667d0618749c763b67d4
- https://github.com/composer/composer/commit/ee28354ca8d33c15949ad7de2ce6656ba3f68704
- https://github.com/composer/composer/security/advisories/GHSA-47f6-5gq3-vx9c
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PO4MU2BC7VR6LMHEX4X7DKGHVFXZV2MC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLPJHM2WWSYU2F6KHW2BYFGYL4IGTKHC/
- https://github.com/composer/composer/commit/b93fc6ca437da35ae73d667d0618749c763b67d4
- https://github.com/composer/composer/commit/ee28354ca8d33c15949ad7de2ce6656ba3f68704
- https://github.com/composer/composer/security/advisories/GHSA-47f6-5gq3-vx9c
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PO4MU2BC7VR6LMHEX4X7DKGHVFXZV2MC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLPJHM2WWSYU2F6KHW2BYFGYL4IGTKHC/
- https://www.vicarius.io/vsociety/posts/cve-2024-35241-detect-composer-vulnerability
- https://www.vicarius.io/vsociety/posts/cve-2024-35241-mitigate-vulnerable-composer
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