Security
Security
Multiple vulnerabilities have been discovered in Composer, the worst of which can lead to arbitrary code execution.
| Package | dev-php/composer on all architectures |
|---|---|
| Affected versions | <= 9999 |
| Unaffected versions |
Composer is a dependency manager for the PHP programming language.
Integrators using Composer code to call `VcsDriver::getFileContent` can have a code injection vulnerability if the user can control the `$file` or `$identifier` argument. This leads to a vulnerability on packagist.org for example where the composer.json's `readme` field can be used as a vector for injecting parameters into hg/Mercurial via the `$file` argument, or git via the `$identifier` argument if you allow arbitrary data there (Packagist does not, but maybe other integrators do). Composer itself should not be affected by the vulnerability as it does not call `getFileContent` with arbitrary data into `$file`/`$identifier`.
Please review the referenced CVE identifiers for details.
There is no known workaround at this time.
Gentoo has discontinued support for composer and the package should be removed:
# emerge --sync # emerge --ask --verbose --depclean "dev-php/composer"
Release date
August 06, 2025
Latest revision
August 06, 2025: 1
Severity
normal
Exploitable
local and remote
Bugzilla entries