CVE-2026-26232 Gitea OAuth2 authorization codes lack expiry and reuse enforcement
Attackers can reuse expired OAuth2 authorization codes to bypass authentication and potentially take over user accounts in Gitea.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-26232?
CVE-2026-26232 is a critical authentication bypass vulnerability in Gitea Open Source Git Server, published on 3 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Gitea versions before 1.25.5 do not consistently enforce OAuth2 authorization code expiry and single-use behavior during token exchange.
Weakness: CWE-294
Which versions are affected by CVE-2026-26232?
3 open source packages ship an affected version, including code.gitea.io/gitea.
| Package | Affected | Fixed in |
|---|---|---|
code.gitea.io/gitea Go | All versions | 1.25.5 |
code.gitea.io/gitea Go | All versions | 1.25.5 |
code.gitea.io/gitea Go | All versions | 1.25.5 |
How do I fix CVE-2026-26232?
Upgrade code.gitea.io/gitea to 1.25.5 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-26232 being exploited?
There is no known exploitation of CVE-2026-26232 in the wild and no public exploit code.
Sources
Also known as GHSA-5v69-g2m3-3hq3, GO-2026-6336.