CVE-2026-3307
Full vulnerability record from the local CVENow database.
Description
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated bypass reviewer list on another repository by manipulating the owner_id parameter in the request body. Authorization was verified against the repository in the URL, but the action was applied to a different repository specified in the request body. The impact is limited to assigning existing trusted users as bypass reviewers; it does not allow adding arbitrary external users. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7, 3.19.4 and 3.20.1. This vulnerability was reported via the GitHub Bug Bounty program.
Severity
MEDIUM
CVSS score
5.3
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-21 23:16:19.950000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
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"id": "CVE-2026-3307",
"sourceIdentifier": "[email protected]",
"published": "2026-04-21T23:16:19.950",
"lastModified": "2026-10-26T22:10:00.163",
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"value": "Una vulnerabilidad de omisión de autorización fue identificada en GitHub Enterprise Server que permitía a un atacante con acceso de administrador en un repositorio modificar la lista de revisores de omisión delegada de la protección de inserción de escaneo de secretos en otro repositorio manipulando el parámetro owner_id en el cuerpo de la solicitud. La autorización fue verificada contra el repositorio en la URL, pero la acción fue aplicada a un repositorio diferente especificado en el cuerpo de la solicitud. El impacto se limita a asignar usuarios de confianza existentes como revisores de omisión; no permite añadir usuarios externos arbitrarios. Esta vulnerabilidad afectó a todas las versiones de GitHub Enterprise Server anteriores a la 3.21 y fue corregida en las versiones 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7, 3.19.4 y 3.20.1. Esta vulnerabilidad fue reportada a través del programa GitHub Bug Bounty."
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