CVE-2026-23632

MEDIUM6.5EPSS 0.02%

Gogs user can update repository content with read-only permission

發布日:2026/2/6修改日:2026/2/19
也稱為:GHSA-5qhx-gwfj-6jqrGO-2026-4450

描述

## Vulnerability Description The endpoint `PUT /repos/:owner/:repo/contents/*` does not require write permissions and allows access with **read permission only** via `repoAssignment()`. After passing the permission check, `PutContents()` invokes `UpdateRepoFile()`, which results in: * Commit creation * Execution of `git push` As a result, a token with **read-only permission** can be used to modify repository contents. --- ## Attack Prerequisites * Possession of a valid access token * Read permission on the target repository (public repository or collaborator with read access) --- ## Attack Scenario 1. The attacker accesses the target repository with a read-only token 2. The attacker sends a `PUT /contents` request to update an arbitrary file 3. The server creates a commit and performs a git push on behalf of the attacker --- ## Potential Impact * Source code tampering * Injection of backdoors * Compromise of release artifacts and distributed packages

受影響套件(2)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

參考連結(5)