CVE-2026-109342 SurrealDB 3.0.0 before 3.3.0 Missing Authentication in revoke RPC Method
Unauthenticated or low-privileged users can revoke other users' refresh tokens, forcing re-authentication and causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109342?
CVE-2026-109342 is a medium-severity missing authorization vulnerability in surrealdb, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SurrealDB from 3.0.0 before 3.3.0 contains a missing authentication vulnerability in the revoke RPC method that allows low-privileged or unauthenticated callers to invalidate other users' refresh tokens without proof of possession. Attackers can obtain grant identifiers via ACCESS SHOW ALL with VIEWER permission or leaked tokens, then permanently revoke refresh tokens to force re-authentication.
Weakness: CWE-306
Which versions are affected by CVE-2026-109342?
How do I fix CVE-2026-109342?
No fix has been published for CVE-2026-109342 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-109342 being exploited?
There is no known exploitation of CVE-2026-109342 in the wild and no public exploit code.
Sources
Also known as GHSA-6872-82p6-5gmv.