Fedora 42 Composer Security Issue Command Injection Fix 2026-d91f313a63
fedora
April 23, 2026
Version 2.9.7 - 2026-04-14 Fixes regression calling custom script command aliases that are called a substring of a composer command (#12802) Version 2.9.6 - 2026-04-14 Security: Fi...
Summary
Composer helps you declare, manage and install dependencies of PHP projects,
ensuring you have the right stack everywhere.
Documentation: https://getcomposer.org/doc/
Update Information:
Version 2.9.7 - 2026-04-14 Fixes regression calling custom script command aliases that are called a substring of a composer command (#12802) Version 2.9.6 - 2026-04-14 Security: Fixed command injection via malicious Perforce reference (GHSA- gqw4-4w2p-838q / CVE-2026-40261) Security: Fixed command injection via malicious Perforce repository definition (GHSA-wg36-wvj6-r67p / CVE-2026-40176) Security: Fixed git credentials remaining in git mirror .git/config after clone or update failed (2bcbfc3d) Security: Fixed usage of insecure 3DES ciphers when ext-curl is missing (5e71d77e) Security: Fixed Perforce unescaped user input in queryP4User shell command (ef3fc088) Security: Hardened git/hg/perforce/fossil identifier validation to ensure branch names starting with - do not cause issues (6621d45, d836b90, 5e08c764) Fixed inconsistent treatment of SingleCommandApplication script commands wrt autoloading (#12758) Fixed GitHub API authentication errors not being visible t...
Topics Covered
Change Log
* Tue Apr 14 2026 Remi Collet
References
[ 1 ] Bug #2459009 - CVE-2026-40261 composer: command injection via malicious Perforce source reference/url [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2459009
[ 2 ] Bug #2459011 - CVE-2026-40176 composer: command injection via malicious Perforce repository definition [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2459011
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-d91f313a63' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Severity
important
Lowest
Low
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Critical
Name: composer
Product: Fedora 42
Version: 2.9.7
Release: 1.fc42
Summary: Dependency Manager for PHP
Topics Covered
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