{"id":"CVE-2026-104626","aliases":["BIT-gitea-2026-104626","EUVD-2026-93907","GHSA-93pj-3x56-5gc2"],"status":"published","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00333,"percentile":0.26854,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-841"],"published":"2026-10-06T19:23:03Z","modified":"2026-10-28T02:31:01Z","fixes":[{"ecosystem":"Bitnami","package":"gitea","fixed_in":["28.0.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitea","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"28.0.0"}]}]}],"products":[{"vendor":"gitea","product":"gitea"}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-93pj-3x56-5gc2","tags":["vendor-advisory","Mitigation","Vendor Advisory","advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/39399","tags":["patch","Patch","fix"]},{"url":"https://blog.gitea.com/release-of-28.0.0/","tags":["release-notes","Release Notes","article","advisory"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","tags":["release-notes","Release Notes","article","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104626","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104626.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-104626","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.","status":"published","published":"2026-10-06T19:23:03.33Z","modified":"2026-10-07T20:19:46.339Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-841"],"updated_at":"2026-11-02T14:20:09.098623Z"}],"euvd":[{"id":"EUVD-2026-93907","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.","status":"published","published":"2026-10-06T19:23:03Z","modified":"2026-10-07T20:19:46Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:33.904651Z"}],"nvd":[{"id":"CVE-2026-104626","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.","status":"published","published":"2026-10-06T20:17:15.12Z","modified":"2026-10-13T17:24:53.25Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-841"],"updated_at":"2026-11-02T14:12:54.809359Z"}],"osv":[{"id":"CVE-2026-104626","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.","status":"published","published":"2026-10-06T19:23:03.33Z","modified":"2026-10-28T02:31:01.826513834Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-841"],"updated_at":"2026-11-02T15:44:54.236592Z"},{"id":"BIT-gitea-2026-104626","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.","status":"published","published":"2026-10-14T08:42:37.77Z","modified":"2026-10-14T11:11:12.735691247Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}