CVEvulnerability
CVE-2026-45793
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-07-15
- Last modified
- 2026-07-15
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-200
Description
Composer 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 tokens with the regex ^[.A-Za-z0-9_]+$ and interpolates rejected tokens into an UnexpectedValueException; GitHub Actions GITHUB_TOKEN values using the ghs_<id>_<base64url-JWT> format can contain -, fail validation, and be disclosed to stderr or CI logs. This issue is fixed in versions 1.10.28, 2.2.28, and 2.9.8.
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://github.com/composer/composer/commit/3f5e7f9fbfa541137d6d1d5643ec3b718e9d5039 github.com
- https://github.com/composer/composer/commit/65e6390c49f1a11cd8b660d81822086db51fe2d1 github.com
- https://github.com/composer/composer/commit/e66c8fdb7ff5409bd2f358c5f194038e49e93714 github.com
- https://github.com/composer/composer/pull/12853 github.com
- https://github.com/composer/composer/pull/12855 github.com
- https://github.com/composer/composer/releases/tag/1.10.28 github.com
- https://github.com/composer/composer/releases/tag/2.2.28 github.com
- https://github.com/composer/composer/releases/tag/2.9.8 github.com
- https://github.com/composer/composer/security/advisories/GHSA-f9f8-rm49-7jv2 github.com