{"id":"BIT-gitea-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":["CVE-2026-89430","GHSA-hcgw-r9gf-8mph"],"modified":"2026-10-14T11:10:59.478375072Z","published":"2026-10-14T08:43:06.048Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*"]},"references":[{"type":"ARTICLE","url":"https://blog.gitea.com/release-of-28.0.0/"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/39010"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/39426"},{"type":"ARTICLE","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":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89430"}],"affected":[{"package":{"name":"gitea","ecosystem":"Bitnami","purl":"pkg:bitnami/gitea"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"28.0.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitea/BIT-gitea-2026-89430.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}],"schema_version":"1.9.0"}