CVE-2026-66877 | BDVDB-2026-388922 Detail

Description#

Gitea enforces first-time fork contributor approval by blocking jobs, but some job transition and dispatch paths do not re-check the run's approval requirement. A separate run sharing a job-level concurrency group can cancel a pending job and cause its blocked sibling jobs to be re-emitted and dispatched without approval. This allows unreviewed workflow code to execute on self-hosted runners; fork secrets remain withheld and the run token remains read-only.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-10-14Record published in the CVE List.
2. Version 22026-10-15Most recent update recorded in the CVE List.