Composer

11 CVEs across 2 Composer products. Browse Composer vulnerabilities, severities, and proof-of-concept exploits.

Composer products with known CVEs

ProductCVEs
Composer14
Windows-Setup1
Composer CVEs — newest first
CVESeverityScorePublishedSummary
CVE-2026-45793High7.52026-07-15Composer is a dependency Manager for the PHP language. Prior to 1.10.28, 2.2.28, and 2.9.8, Composer\IO\BaseIO::loadConfiguration() validates GitHub OAuth toke…
CVE-2026-59948High7.02026-07-08Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, a maliciously crafted package from an untrusted repository other than Packag…
CVE-2026-59947Medium4.72026-07-08Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, when Composer is run with -vvv debug verbosity, it could print a credential…
CVE-2026-59946Medium6.12026-07-08Composer 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…
CVE-2026-40261High8.82026-04-15Composer 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::syncCode…
CVE-2026-40176High7.82026-04-15Composer 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::generate…
CVE-2025-67746Medium4.32025-12-30Composer 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…
CVE-2024-35242High8.82024-06-10Composer is a dependency manager for PHP. On the 2.x branch prior to versions 2.2.24 and 2.7.7, the `composer install` command running inside a git/hg reposito…
CVE-2024-35241High8.82024-06-10Composer is a dependency manager for PHP. On the 2.x branch prior to versions 2.2.24 and 2.7.7, the `status`, `reinstall` and `remove` commands with packages i…
CVE-2024-24821High8.82024-02-09Composer is a dependency Manager for the PHP language. In affected versions several files within the local working directory are included during the invocation…
CVE-2023-43655Medium6.42023-09-29Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php f…
CVE-2022-24828High8.32022-04-13Composer is a dependency manager for the PHP programming language. Integrators using Composer code to call `VcsDriver::getFileContent` can have a code injectio…
CVE-2021-41116High8.22021-10-05Composer is an open source dependency manager for the PHP language. In affected versions windows users running Composer to install untrusted dependencies are s…
CVE-2021-29472High8.82021-04-27Composer is a dependency manager for PHP. URLs for Mercurial repositories in the root composer.json and package source download URLs are not sanitized correctl…
CVE-2020-15145Medium6.72020-08-14In Composer-Setup for Windows before version 6.0.0, if the developer's computer is shared with other users, a local attacker may be able to exploit the followi…