CVE-2026-27783 Gitea issue-template APIs bypass repository unit authorization
Attackers can access issue-template APIs without proper repository-unit authorization, potentially reading restricted data in Gitea.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-27783?
CVE-2026-27783 is a medium-severity missing authorization vulnerability in Gitea Open Source Git Server, published on 3 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Gitea versions up to and including 1.26.1 do not enforce repository-unit authorization on issue-template API endpoints.
Weakness: CWE-862
Which versions are affected by CVE-2026-27783?
3 open source packages ship an affected version, including code.gitea.io/gitea.
| Package | Affected | Fixed in |
|---|---|---|
code.gitea.io/gitea Go | All versions | 1.26.2 |
code.gitea.io/gitea Go | All versions | 1.26.2 |
code.gitea.io/gitea Go | All versions | 1.26.2 |
How do I fix CVE-2026-27783?
Upgrade code.gitea.io/gitea to 1.26.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-27783 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27783 exists.
Sources
Also known as GHSA-3fwp-p5rj-2pxf, GO-2026-5081.