CVE-2026-40176 Composer is vulnerable to Command Injection via Malicious Perforce Repository

Composer is a dependency manager for PHP. Versions 1.0 through 2.2.26 and 2.3 through 2.9.5 contain a command injection vulnerability in the Perforce::generateP4Command method, which constructs shell commands by interpolating user-supplied Perforce connection parameters port, user, client without...

CVE-2026-40176

CVE-2026-40176 affects Composer (PHP dependency manager). The vulnerability lies in Perforce integration: Perforce::generateP4Command() constructs shell commands by interpolating user-supplied Perforce connection parameters (port, user, client) without proper escaping, enabling command injection....

GHSA-WG36-WVJ6-R67P Composer has a command injection via malicious perforce repository

Impact The Perforce::generateP4Command method constructed shell commands by interpolating user-supplied Perforce connection parameters port, user, client without proper escaping. An attacker controlling a repository configuration in a malicious composer.json declaring a Perforce VCS repository...