CVE-2025-67746

Name	CVE-2025-67746
Description	Composer is a dependency manager for PHP. In versions on the 2.x branch prior to 2.2.26 and 2.9.3, attackers controlling remote sources that Composer downloads from might in some way inject ANSI control characters in the terminal output of various Composer commands, causing mangled output and potentially leading to confusion or DoS of the terminal application. There is no proven exploit and this has thus a low severity but we still publish a CVE as it has potential for abuse, and we want to be on the safe side informing users that they should upgrade. Versions 2.2.26 and 2.9.3 contain a patch for the issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
composer (PTS)	bullseye (security), bullseye	2.0.9-2+deb11u4	vulnerable
	bookworm, bookworm (security)	2.5.5-1+deb12u2	vulnerable
	trixie	2.8.8-1	vulnerable
	forky	2.9.2-1	vulnerable
	sid	2.9.3-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
composer	source	(unstable)	2.9.3-1

Notes

[trixie] - composer <no-dsa> (Minor issue)
[bookworm] - composer <no-dsa> (Minor issue)
[bullseye] - composer <postponed> (Minor issue, terminal control characters sanitization)
https://github.com/composer/composer/security/advisories/GHSA-59pp-r3rg-353g
Fixed by: https://github.com/composer/composer/commit/5db1876a76fdef76d3c4f8a27995c434c7a43e71 (2.9.3)
Fixed by: https://github.com/composer/composer/commit/1d40a95c9d39a6b7f80d404ab30336c586da9917 (2.2.26)