{"id":"CVE-2026-104632","published":"2026-10-06T20:17:15.237","lastModified":"2026-10-07T21:17:08.940","description":"Gitea Actions blocks the jobs of workflow runs from first-time fork pull request contributors until a maintainer approves the run. The rerun path only required a run to be finished and built the new attempt's jobs without considering the pending approval, so when a user with Actions write access cancelled a run that was awaiting approval and then re-ran it, the new jobs were created as waiting rather than blocked while the run still recorded that approval was required. Cancelling and re-running stale fork checks is a routine action that does not involve the approval control, so where Actions is enabled and a matching runner is registered, workflow code taken from the fork pull request head could run on the repository's runners without an explicit approval.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-285"],"vendors":[],"products":[],"references":[{"url":"https://blog.gitea.com/release-of-28.0.0/","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/39399","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-pvjf-7jrm-6w9g","tags":[]}],"exploitRefs":[{"url":"https://github.com/go-gitea/gitea/pull/39399","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-pvjf-7jrm-6w9g","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows a user with Actions write access to bypass the approval requirement by canceling and re-running a workflow, potentially leading to unauthorized execution of code from a fork pull request.","exploitability":"Exploitation is relatively easy given the required Actions write access and the routine nature of canceling and re-running stale fork checks.","blast_radius":"If exploited, the flaw could lead to unauthorized execution of code on the repository's runners, potentially compromising the integrity and security of the repository.","remediation":"Disable the rerun feature for workflow runs from first-time fork pull request contributors until a maintainer approves the run.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["auth-bypass","code-execution","git"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-08T08:41:45.520Z"}}