Vulnerability Details CVE-2026-103670
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 11.0%
CVSS Severity
CVSS v3 Score 7.5