CVE-2026-59947
1 advisory.
Packagist/composer/composer CVE-2026-59947: medium 4.7, EPSS 0.12%
Composer: URL-embedded HTTP-Basic username leaks to verbose logs (GitHub PAT exposure)
Action: Upgrade composer/composer to 2.2.29 or later.
composer require composer/composer:2.10.2composer require composer/composer:2.2.29Affected
| introduced | fixed | last affected |
|---|---|---|
| 2.3.0 | 2.10.2 | - |
| 1.0.0 | 2.2.29 | - |
Fixed versions
| 2.10.2 | 2.2.29 |
Sources
- osv: GHSA-g6xq-892h-64w3
- https://github.com/composer/composer/security/advisories/GHSA-g6xq-892h-64w3
- https://nvd.nist.gov/vuln/detail/CVE-2026-59947
- https://github.com/composer/composer/commit/6bd66874ae523ecb69aca5964487a0cdfda03ef8
- https://github.com/composer/composer/commit/8887ad76fbd830cb1861a2b1fd8ead78ed1fa1ec
- https://github.com/composer/composer
- https://github.com/composer/composer/releases/tag/2.10.2
- https://github.com/composer/composer/releases/tag/2.2.29
CVE-2026-59947 · published · modified · JSON