{"id":"CVE-2026-89430","summary":"Gitea push mirror SSRF and forced writes to internal Git hosts","details":"Gitea validated a push mirror's remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository's contents to them.","aliases":["GHSA-hcgw-r9gf-8mph"],"modified":"2026-10-07T10:47:00.000796929Z","published":"2026-10-06T19:23:52.198Z","database_specific":{"cwe_ids":["CWE-367","CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89430.json","cna_assigner":"Gitea"},"references":[{"type":"ADVISORY","url":"https://blog.gitea.com/release-of-28.0.0/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89430.json"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/39010"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/39426"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-hcgw-r9gf-8mph"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89430"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-gitea/gitea","events":[{"introduced":"0"},{"last_affected":"146cc3eec57174711eac0e0a0c7b38670c6e3922"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.27.3"}],"source":"AFFECTED_FIELD"}}],"versions":["v1.27.3","v1.27.2","v1.27.1","v1.27.0","v1.27.0-rc0","v1.28.0-dev","v1.27.0-dev","v1.26.0-dev","v1.25.0-dev","v1.24.0-dev","v1.22.0-rc1","v1.23.0-dev","v1.22.0-rc0","v1.21.0-rc0","v1.22.0-dev","v1.20.0-rc0","v1.21.0-dev","v1.20.0-dev","v1.19.0-rc0","v1.18.0-rc0","v1.19.0-dev","v1.18.0-dev","v1.17.0-dev","v1.16.0-rc1","v1.15.0-rc1","v1.16.0-dev","v1.15.0-dev","v1.14.0-dev","v1.13.0-dev","v1.12.0-dev","v1.10.5","v1.11.0-rc1","v1.10.0-rc1","v1.11.0-dev","v1.9.0-rc1","v1.10.0-dev","v1.9.0-dev","v1.7.0-dev","v1.6.0-rc1","v1.6.0-dev","v1.5.0-rc1","v1.5.0-dev","v1.1.0","v1.0.0","v0.9.99"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89430.json"}}],"schema_version":"1.9.0"}