{"id":"CVE-2026-66874","state":"PUBLISHED","title":"Gitea required Actions check bypass through skipped workflows","description":"For pull request events, Gitea reads workflow definitions from the pull request head and posts a synthetic skipped status when workflow branch or path filters exclude execution. A fork pull request author can supply a workflow matching a required status context but deliberately prevent it from running. Because skipped statuses count as success, branch protection or organization-required workflow checks can appear satisfied without the mandated workflow executing; no runner or maintainer approval is required for this path.","publishedAt":"2026-10-14T14:36:06.090Z","updatedAt":"2026-10-14T15:12:51.792Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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":"1.27.2","versionType":"semver"}]}],"references":["https://github.com/go-gitea/gitea/security/advisories/GHSA-5xp7-r6cr-39ff","https://blog.gitea.com/release-of-1.27.3/","https://github.com/go-gitea/gitea/pull/39005","https://github.com/go-gitea/gitea/pull/39018","https://github.com/go-gitea/gitea/releases/tag/v1.27.3"],"weaknesses":["CWE-284","CWE-345","CWE-693","CWE-807"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/66xxx/CVE-2026-66874.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-66874","state":"PUBLISHED","datePublished":"2026-10-14T14:36:06.090Z","dateUpdated":"2026-10-14T15:12:51.792Z","assignerShortName":"Gitea","assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateReserved":"2026-08-13T16:50:58.692Z"},"containers":{"cna":{"title":"Gitea required Actions check bypass through skipped workflows","descriptions":[{"lang":"en","value":"For pull request events, Gitea reads workflow definitions from the pull request head and posts a synthetic skipped status when workflow branch or path filters exclude execution. A fork pull request author can supply a workflow matching a required status context but deliberately prevent it from running. Because skipped statuses count as success, branch protection or organization-required workflow checks can appear satisfied without the mandated workflow executing; no runner or maintainer approval is required for this path."}],"affected":[{"vendor":"Gitea","product":"Gitea","packageName":"gitea.dev","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.27.2","versionType":"semver"}]}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-5xp7-r6cr-39ff","name":"GitHub Security Advisory GHSA-5xp7-r6cr-39ff","tags":["vendor-advisory"]},{"url":"https://blog.gitea.com/release-of-1.27.3/","name":"Gitea 1.27.3 release announcement","tags":["release-notes"]},{"url":"https://github.com/go-gitea/gitea/pull/39005","name":"Fix: go-gitea/gitea pull request #39005","tags":["patch"]},{"url":"https://github.com/go-gitea/gitea/pull/39018","name":"Fix: go-gitea/gitea pull request #39018","tags":["patch"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","name":"go-gitea/gitea v1.27.3 release","tags":["release-notes"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","type":"CWE","description":"CWE-284: Improper Access Control"},{"cweId":"CWE-345","lang":"en","type":"CWE","description":"CWE-345: Insufficient Verification of Data Authenticity"},{"cweId":"CWE-693","lang":"en","type":"CWE","description":"CWE-693: Protection Mechanism Failure"},{"cweId":"CWE-807","lang":"en","type":"CWE","description":"CWE-807: Reliance on Untrusted Inputs in a Security Decision"}]}],"providerMetadata":{"shortName":"Gitea","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","dateUpdated":"2026-10-14T14:36:06.090Z"},"credits":[{"lang":"en","value":"https://github.com/iabdullah215","type":"reporter"},{"lang":"en","value":"https://github.com/effabinteashfaq","type":"reporter"},{"lang":"en","value":"https://github.com/bircni","type":"remediation developer"}]},"adp":[{"title":"CISA ADP Vulnrichment","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:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T15:12:30.376099Z","id":"CVE-2026-66874","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-14T15:12:51.792Z"}}]}}}