Arbitrary Command Injection The advisory has been revoked - it doesn't affect any version of package composer (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-COMPOSER-1728585
- published1 Jun 2025
- disclosed5 Oct 2021
Introduced: 5 Oct 2021
CVE-2021-41116 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream composer package and not the composer package as distributed by Ubuntu.
Composer is an open source dependency manager for the PHP language. In affected versions windows users running Composer to install untrusted dependencies are subject to command injection and should upgrade their composer version. Other OSs and WSL are not affected. The issue has been resolved in composer versions 1.10.23 and 2.1.9. There are no workarounds for this issue.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-41116
- https://github.com/composer/composer/security/advisories/GHSA-frqg-7g38-6gcf
- https://github.com/composer/composer/commit/ca5e2f8d505fd3bfac6f7c85b82f2740becbc0aa
- https://www.tenable.com/security/tns-2022-09
- https://www.sonarsource.com/blog/securing-developer-tools-package-managers/