CVE-2026-109340 SurrealDB 3.1.0 before 3.3.0 Authorization Bypass via REFERENCE ON DELETE CASCADE
Authenticated users can bypass delete permissions on graph edges by exploiting REFERENCE ON DELETE CASCADE, allowing unauthorized data deletion.
- 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-2026-109340?
CVE-2026-109340 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 3.1.0 before 3.3.0 contains an authorization bypass vulnerability that allows authenticated users to delete protected graph edges by triggering a REFERENCE ON DELETE CASCADE. Attackers with delete permission on a referenced table can delete a record whose cascade disables permission checks for edge cleanup, erasing edges despite the edge table's PERMISSIONS FOR delete clause.
Weakness: CWE-862
Which versions are affected by CVE-2026-109340?
How do I fix CVE-2026-109340?
No fix has been published for CVE-2026-109340 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-2026-109340 being exploited?
There is no known exploitation of CVE-2026-109340 in the wild and no public exploit code.
Sources
Also known as GHSA-776g-xgm5-fjc8.