CVE-2026-55982 OIDC userinfo Endpoint Returns Identity Claims Without Enforcing API Token Scopes
Attackers can retrieve sensitive identity claims from the OIDC userinfo endpoint without proper API token scope enforcement.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-55982?
CVE-2026-55982 is a critical vulnerability in Gitea Open Source Git Server, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OIDC userinfo Endpoint Returns Identity Claims Without Enforcing API Token Scopes
Weakness: CWE-200
Which versions are affected by CVE-2026-55982?
3 open source packages ship an affected version, including code.gitea.io/gitea and gitea.dev.
| Package | Affected | Fixed in |
|---|---|---|
code.gitea.io/gitea Go | All versions | 1.27.0 |
code.gitea.io/gitea Go | All versions | 1.27.0 |
gitea.dev Go | All versions | 1.27.0 |
How do I fix CVE-2026-55982?
Upgrade code.gitea.io/gitea to 1.27.0 or later.
Is CVE-2026-55982 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55982 exists.
Sources
Also known as GHSA-mg4f-x9v4-6h2p, GO-2026-6065, MINI-cqxp-xx88-j8hr, MINI-gww4-vwj3-gfpc.