CVE-2026-40176
1 advisory.
Packagist/composer/composer CVE-2026-40176: high 7.8
Composer has a command injection via malicious perforce repository
Action: Upgrade composer/composer to 2.2.27 or later.
composer require composer/composer:2.9.6composer require composer/composer:2.2.27Affected
| introduced | fixed | last affected |
|---|---|---|
| 2.3.0 | 2.9.6 | - |
| 1.0.0 | 2.2.27 | - |
Fixed versions
| 2.9.6 | 2.2.27 |
Sources
- osv: GHSA-wg36-wvj6-r67p
- https://github.com/composer/composer/security/advisories/GHSA-wg36-wvj6-r67p
- https://nvd.nist.gov/vuln/detail/CVE-2026-40176
- https://access.redhat.com/errata/RHSA-2026:8165
- https://access.redhat.com/security/cve/CVE-2026-40176
- https://bugzilla.redhat.com/show_bug.cgi?id=2458828
- https://github.com/FriendsOfPHP/security-advisories/blob/master/composer/composer/CVE-2026-40176.yaml
- https://github.com/composer/composer
- https://github.com/composer/composer/releases/tag/2.9.6
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40176.json
CVE-2026-40176 · published · modified · JSON