CVE-2026-52808 Gogs: Write-level collaborators can mutate admin-only repository settings via API

What is CVE-2026-52808?

CVE-2026-52808 is a high-severity missing authorization vulnerability in gogs, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Gogs is an open source self-hosted Git service. Prior to 0.14.3, three API endpoints — PATCH /api/v1/repos/:owner/:repo/issue-tracker, PATCH /api/v1/repos/:owner/:repo/wiki, and POST /api/v1/repos/:owner/:repo/mirror-sync — are gated by reqRepoWriter() rather than reqRepoAdmin(). The equivalent operations in the web UI sit behind reqRepoAdmin, which requires AccessMode >= AccessModeAdmin. A write-level collaborator (who has AccessMode == AccessModeWrite < AccessModeAdmin) can therefore call these API endpoints directly to disable the native issue tracker or wiki, inject attacker-controlled external tracker/wiki URLs that redirect all repository visitors, or trigger mirror sync — none of which they are authorized to do. This vulnerability is fixed in 0.14.3.

Weakness: CWE-863, CWE-269

Which versions are affected by CVE-2026-52808?

3 open source packages ship an affected version, including gogs.io/gogs.

How do I fix CVE-2026-52808?

Upgrade gogs.io/gogs to 0.14.3 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-52808 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52808 exists.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-268j-37xf-pp52, GO-2026-5065.