CVE-2026-84361
1 advisory.
Packagist/composer/composer CVE-2026-84361: high, EPSS 0.50%
Composer arbitrary command execution via a malicious package's Perforce source URL
Action: Upgrade composer/composer to 2.2.30 or later.
composer require composer/composer:2.10.3composer require composer/composer:2.2.30Affected
| introduced | fixed | last affected |
|---|---|---|
| 2.3.0 | 2.10.3 | - |
| 1.0 | 2.2.30 | - |
Fixed versions
| 2.10.3 | 2.2.30 |
Sources
- osv: GHSA-rvx4-ffvw-m9q3
- https://github.com/composer/composer/security/advisories/GHSA-rvx4-ffvw-m9q3
- https://nvd.nist.gov/vuln/detail/CVE-2026-84361
- https://github.com/composer/composer/commit/0aac50528e83ed635cf788333635897469440220
- https://github.com/composer/composer/commit/199ad81a9cc6a2a5164ad79a8da26b2e19e521af
- https://github.com/composer/composer
- https://github.com/composer/composer/releases/tag/2.10.3
- https://github.com/composer/composer/releases/tag/2.2.30
CVE-2026-84361 · published · modified · JSON