CVE-2026-103670 — Gitea trusted workflow cancellation by unapproved fork runs
When a Gitea Actions run was inserted, older runs in the same workflow-level concurrency group were cancelled without checking whether the new run still needed approval. Because…
Published: 2026-10-06 · CVSS: 7.5 · CVSS 3.1
When a Gitea Actions run was inserted, older runs in the same workflow-level concurrency group were cancelled without checking whether the new run still needed approval. Because fork pull request runs are inserted under the base repository, a user who can open a pull request from a fork could cancel trusted in-progress runs that share a concurrency group with `cancel-in-progress` enabled, without approval and without running any code. On self-hosted runners this can interrupt deployments and leave partial state behind.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7