{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20800","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","state":"PUBLISHED","assignerShortName":"Gitea","dateReserved":"2026-01-08T23:02:37.571Z","datePublished":"2026-01-22T22:01:50.368Z","dateUpdated":"2026-01-23T21:54:29.961Z"},"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's notification API does not re-validate repository access permissions when returning notification details. After a user's access to a private repository is revoked, they may still view issue and pull request titles through previously received notifications."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}]}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-g54m-9f6g-wj7q","name":"GitHub Security Advisory","tags":["vendor-advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/36339","name":"GitHub Pull Request #36339","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":"Notification API Leaks Private Repository Issue Titles After Collaborator Permission Revocation","providerMetadata":{"orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea","dateUpdated":"2026-01-22T22:01:50.368Z"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-01-23T21:11:32.615971Z","id":"CVE-2026-20800","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-23T21:54:29.961Z"}}]}}