CVE-2026-66877
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Gitea
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-284Improper access control
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Gitea Gitea | v ≤ 1.27.2 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.