{"api_version":"1","generated_at":"2026-10-06T21:46:39+00:00","cve":"CVE-2026-104626","urls":{"html":"https://cve.report/CVE-2026-104626","api":"https://cve.report/api/cve/CVE-2026-104626.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-104626","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-104626"},"summary":{"title":"Gitea fork workflow job revival through later approval","description":"A user who can open a fork pull request can place workflow content with a shared run-level concurrency group into a Gitea Actions run that is awaiting approval. When a later run in that group cancels the blocked job, the run becomes terminal while still marked as needing approval. If a maintainer later approves the run, Gitea passed the already-cancelled job back through concurrency preparation, set it to waiting, and made it claimable by a matching runner, executing fork-controlled workflow code. Exploitation requires the maintainer's later approval action, Actions to be enabled, and a runner that accepts the repository's jobs.","state":"PUBLISHED","assigner":"Gitea","published_at":"2026-10-06 20:17:15","updated_at":"2026-10-06 20:17:15"},"problem_types":["CWE-841","CWE-841 CWE-841: Improper Enforcement of Behavioral Workflow"],"metrics":[],"references":[{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","name":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://blog.gitea.com/release-of-28.0.0/","name":"https://blog.gitea.com/release-of-28.0.0/","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/pull/39399","name":"https://github.com/go-gitea/gitea/pull/39399","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-93pj-3x56-5gc2","name":"https://github.com/go-gitea/gitea/security/advisories/GHSA-93pj-3x56-5gc2","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-104626","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104626","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Gitea","product":"Gitea","version":"affected 1.27.3 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"https://github.com/opensec-intelligence","lang":"en"},{"source":"CNA","value":"https://github.com/mayank-jangid-moon","lang":"en"},{"source":"CNA","value":"https://github.com/Kushalkhemka","lang":"en"},{"source":"CNA","value":"https://github.com/skigeek16","lang":"en"},{"source":"CNA","value":"https://github.com/nithissh7","lang":"en"},{"source":"CNA","value":"https://github.com/kewmine","lang":"en"},{"source":"CNA","value":"https://github.com/bircni","lang":"en"},{"source":"CNA","value":"https://github.com/silverwind","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"gitea.dev","product":"Gitea","vendor":"Gitea","versions":[{"lessThanOrEqual":"1.27.3","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"tool","value":"https://github.com/opensec-intelligence"},{"lang":"en","type":"reporter","value":"https://github.com/mayank-jangid-moon"},{"lang":"en","type":"reporter","value":"https://github.com/Kushalkhemka"},{"lang":"en","type":"reporter","value":"https://github.com/skigeek16"},{"lang":"en","type":"reporter","value":"https://github.com/nithissh7"},{"lang":"en","type":"reporter","value":"https://github.com/kewmine"},{"lang":"en","type":"remediation developer","value":"https://github.com/bircni"},{"lang":"en","type":"remediation developer","value":"https://github.com/silverwind"}],"descriptions":[{"lang":"en","value":"A user who can open a fork pull request can place workflow content with a shared run-level concurrency group into a Gitea Actions run that is awaiting approval. When a later run in that group cancels the blocked job, the run becomes terminal while still marked as needing approval. If a maintainer later approves the run, Gitea passed the already-cancelled job back through concurrency preparation, set it to waiting, and made it claimable by a matching runner, executing fork-controlled workflow code. Exploitation requires the maintainer's later approval action, Actions to be enabled, and a runner that accepts the repository's jobs."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-841","description":"CWE-841: Improper Enforcement of Behavioral Workflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-06T19:23:03.330Z","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea"},"references":[{"name":"GitHub Security Advisory GHSA-93pj-3x56-5gc2","tags":["vendor-advisory"],"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-93pj-3x56-5gc2"},{"name":"Fix: go-gitea/gitea pull request #39399","tags":["patch"],"url":"https://github.com/go-gitea/gitea/pull/39399"},{"name":"Gitea 28.0.0 release announcement","tags":["release-notes"],"url":"https://blog.gitea.com/release-of-28.0.0/"},{"name":"go-gitea/gitea v28.0.0 release","tags":["release-notes"],"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0"}],"title":"Gitea fork workflow job revival through later approval"}},"cveMetadata":{"assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","assignerShortName":"Gitea","cveId":"CVE-2026-104626","datePublished":"2026-10-06T19:23:03.330Z","dateReserved":"2026-10-04T21:57:35.546Z","dateUpdated":"2026-10-06T19:23:03.330Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 20:17:15","lastModifiedDate":"2026-10-06 20:17:15","problem_types":["CWE-841","CWE-841 CWE-841: Improper Enforcement of Behavioral Workflow"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"104626","Ordinal":"1","Title":"Gitea fork workflow job revival through later approval","CVE":"CVE-2026-104626","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"104626","Ordinal":"1","NoteData":"A user who can open a fork pull request can place workflow content with a shared run-level concurrency group into a Gitea Actions run that is awaiting approval. When a later run in that group cancels the blocked job, the run becomes terminal while still marked as needing approval. If a maintainer later approves the run, Gitea passed the already-cancelled job back through concurrency preparation, set it to waiting, and made it claimable by a matching runner, executing fork-controlled workflow code. Exploitation requires the maintainer's later approval action, Actions to be enabled, and a runner that accepts the repository's jobs.","Type":"Description","Title":"Gitea fork workflow job revival through later approval"}]}}}