{"id":"CVE-2026-27775","summary":"Gitea pre-receive hook permission cache allows full repository write access","details":"Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.","aliases":["GHSA-649p-mmhf-85c7"],"modified":"2026-07-15T01:49:22.025008187Z","published":"2026-07-03T20:19:37.275Z","database_specific":{"cna_assigner":"Gitea","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27775.json"},"references":[{"type":"ADVISORY","url":"https://blog.gitea.com/release-of-1.26.3-and-1.26.4/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27775.json"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/releases/tag/v1.26.3"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27775"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/38151"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-gitea/gitea","events":[{"introduced":"f913d90ab664c1deccdfbe8c563abb13e897d62b"},{"fixed":"4aa0d704f2c7d30351016b740bfc45247fd77efa"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"1.25.5"},{"last_affected":"1.25.5"}]}}],"versions":["1.25.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27775.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}