CVE-2026-89430
High
Description
Gitea validated a push mirror's remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository's contents to them.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Gitea
PublishedOct 6, 2026
First seenOct 6, 2026
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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