{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-104626", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "state": "PUBLISHED", "assignerShortName": "Gitea", "dateReserved": "2026-10-04T21:57:35.546Z", "datePublished": "2026-10-06T19:23:03.330Z", "dateUpdated": "2026-10-06T19:23:03.330Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-10-06T19:23:03.330Z"}, "title": "Gitea fork workflow job revival through later approval", "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."}], "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-93pj-3x56-5gc2", "name": "GitHub Security Advisory GHSA-93pj-3x56-5gc2", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/39399", "name": "Fix: go-gitea/gitea pull request #39399", "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": [{"lang": "en", "type": "CWE", "cweId": "CWE-841", "description": "CWE-841: Improper Enforcement of Behavioral Workflow"}]}], "credits": [{"lang": "en", "value": "https://github.com/opensec-intelligence", "type": "tool"}, {"lang": "en", "value": "https://github.com/mayank-jangid-moon", "type": "reporter"}, {"lang": "en", "value": "https://github.com/Kushalkhemka", "type": "reporter"}, {"lang": "en", "value": "https://github.com/skigeek16", "type": "reporter"}, {"lang": "en", "value": "https://github.com/nithissh7", "type": "reporter"}, {"lang": "en", "value": "https://github.com/kewmine", "type": "reporter"}, {"lang": "en", "value": "https://github.com/bircni", "type": "remediation developer"}, {"lang": "en", "value": "https://github.com/silverwind", "type": "remediation developer"}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "gitea.dev", "product": "Gitea", "vendor": "Gitea", "versions": [{"lessThanOrEqual": "1.27.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}], "cveTags": [], "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."}], "id": "CVE-2026-104626", "lastModified": "2026-10-06T20:17:15.120", "metrics": {}, "published": "2026-10-06T20:17:15.120", "references": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://blog.gitea.com/release-of-28.0.0/"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/pull/39399"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-93pj-3x56-5gc2"}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-841"}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "type": "Secondary"}]}

{}

{}