Composer: Path traversal in package bin field lets dependencies chmod arbitrary host files
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, a Composer package bin entry containing .. path segments can resolve outside the package install directory and cause Composer's binary installation flow to chmod an existing host file to a world-readable and world-executable mode during composer install, update, or require. This issue is fixed in versions 2.2.29 and 2.10.2.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Affected products
composer · composerReferences
https://github.com/composer/composer/commit/502c6c4f699802d9cf464728b3e8a95674f919a0https://github.com/composer/composer/commit/c50b1efd13ebd73f6dca19b31424c5a02bf93cc1https://github.com/composer/composer/releases/tag/2.10.2https://github.com/composer/composer/releases/tag/2.2.29https://github.com/composer/composer/security/advisories/GHSA-gjfg-22fp-rrxx