CVE-2026-103670
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Gitea
PublishedOct 6, 2026
First seenOct 6, 2026
Weakness typeCWE-667CWE-667
How to fix
Update
- gitea gitea28.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitea gitea | v < 28.0.0 | 28.0.0 |
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