{"id":"CVE-2026-52808","aliases":["GHSA-268j-37xf-pp52","GO-2026-5065"],"url":"https://o3.security/vulnerability/CVE-2026-52808","summary":"Gogs: Write-level collaborators can mutate admin-only repository settings via API","details":"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.","published":"2026-06-24T20:27:41.410Z","modified":"2026-08-12T03:51:20.152255841Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"},"epss":{"score":0.00335,"percentile":0.26211,"asOf":"2026-08-11"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"gogs.io/gogs","fixedVersion":"0.14.3"}],"fix":{"url":"https://github.com/gogs/gogs/commit/6283462119bd8894f1599d70339b5e823f99954a","label":"gogs/gogs@6283462"},"references":[{"type":"WEB","url":"https://github.com/gogs/gogs/releases/tag/v0.14.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52808.json"},{"type":"ADVISORY","url":"https://github.com/gogs/gogs/security/advisories/GHSA-268j-37xf-pp52"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52808"},{"type":"FIX","url":"https://github.com/gogs/gogs/commit/6283462119bd8894f1599d70339b5e823f99954a"},{"type":"FIX","url":"https://github.com/gogs/gogs/pull/8327"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:20.152255841Z"}}