{"id":"CVE-2026-89430","state":"PUBLISHED","title":"Gitea push mirror SSRF and forced writes to internal Git hosts","description":"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.","publishedAt":"2026-10-06T19:23:52.198Z","updatedAt":"2026-10-07T20:16:04.169Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"Gitea","products":["Gitea Gitea"],"affected":[{"vendor":"Gitea","product":"Gitea","packageName":"gitea.dev","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.27.3","versionType":"semver"}]}],"references":["https://github.com/go-gitea/gitea/security/advisories/GHSA-hcgw-r9gf-8mph","https://github.com/go-gitea/gitea/pull/39010","https://github.com/go-gitea/gitea/pull/39426","https://blog.gitea.com/release-of-28.0.0/","https://github.com/go-gitea/gitea/releases/tag/v28.0.0"],"weaknesses":["CWE-367","CWE-918"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89430.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89430","state":"PUBLISHED","datePublished":"2026-10-06T19:23:52.198Z","dateUpdated":"2026-10-07T20:16:04.169Z","assignerShortName":"Gitea","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateReserved":"2026-10-04T21:57:35.573Z"},"containers":{"cna":{"title":"Gitea push mirror SSRF and forced writes to internal Git hosts","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Gitea","product":"Gitea","packageName":"gitea.dev","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.27.3","versionType":"semver"}]}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-hcgw-r9gf-8mph","name":"GitHub Security Advisory GHSA-hcgw-r9gf-8mph","tags":["vendor-advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/39010","name":"Fix: go-gitea/gitea pull request #39010","tags":["patch"]},{"url":"https://github.com/go-gitea/gitea/pull/39426","name":"Fix: go-gitea/gitea pull request #39426","tags":["patch"]},{"url":"https://blog.gitea.com/release-of-28.0.0/","name":"Gitea 28.0.0 release announcement","tags":["release-notes"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","name":"go-gitea/gitea v28.0.0 release","tags":["release-notes"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-367","lang":"en","type":"CWE","description":"CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"},{"cweId":"CWE-918","lang":"en","type":"CWE","description":"CWE-918: Server-Side Request Forgery (SSRF)"}]}],"providerMetadata":{"shortName":"Gitea","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateUpdated":"2026-10-06T19:23:52.198Z"},"credits":[{"lang":"en","value":"https://github.com/thesmartshadow","type":"reporter"},{"lang":"en","value":"https://github.com/manus-use","type":"reporter"},{"lang":"en","value":"https://github.com/cy3erm","type":"reporter"},{"lang":"en","value":"https://github.com/TheFox0x7","type":"remediation developer"},{"lang":"en","value":"https://github.com/silverwind","type":"remediation developer"},{"lang":"en","value":"https://github.com/bircni","type":"remediation developer"},{"lang":"en","value":"https://github.com/wxiaoguang","type":"remediation developer"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.1,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T20:15:42.946496Z","id":"CVE-2026-89430","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-07T20:16:04.169Z"}}]}}}