{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20897","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","state":"PUBLISHED","assignerShortName":"Gitea","dateReserved":"2026-01-08T23:02:37.525Z","datePublished":"2026-01-22T22:01:51.508Z","dateUpdated":"2026-01-23T21:54:06.525Z"},"containers":{"cna":{"affected":[{"vendor":"Gitea","product":"Gitea Open Source Git Server","versions":[{"version":"0","lessThanOrEqual":"1.25.3","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Gitea does not properly validate repository ownership when deleting Git LFS locks. A user with write access to one repository may be able to delete LFS locks belonging to other repositories."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-rrq5-r9h5-pc7c","name":"GitHub Security Advisory","tags":["vendor-advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/36344","name":"GitHub Pull Request #36344","tags":["patch"]},{"url":"https://github.com/go-gitea/gitea/pull/36349","name":"GitHub Pull Request #36349","tags":["patch"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.25.4","name":"Gitea v1.25.4 Release","tags":["release-notes"]},{"url":"https://blog.gitea.com/release-of-1.25.4/","name":"Gitea v1.25.4 Release Blog Post","tags":["release-notes"]}],"credits":[{"lang":"en","value":"spingARbor","type":"reporter"}],"title":"Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)","providerMetadata":{"orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea","dateUpdated":"2026-01-22T22:01:51.508Z"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-01-23T17:56:55.236953Z","id":"CVE-2026-20897","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-23T21:54:06.525Z"}}]}}