Medium severity · published Oct 12, 2026
CVE-2026-109340
SurrealDB 3.1.0 before 3.3.0 Authorization Bypass via REFERENCE ON DELETE CASCADE
5.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
surrealdb · surrealdb
3.1.0 before 3.3.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109340
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109340
vendor-advisory
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-4w65-7h3j-p29h
third-party-advisory
https://www.vulncheck.com/advisories/surrealdb-3.1.0-before-3.3.0-authorization-bypass-via-reference-on-delete-cascade
More from surrealdb
8.8
CVE-2026-63763
SurrealDB before 2.5.0 Privilege Escalation via Future Fields
8.8
CVE-2026-63757
SurrealDB before 3.1.0 Session Hijacking via /rpc sessions
8.8
CVE-2025-71390
SurrealDB before 2.3.6 deny-net Bypass via DNS Resolution
8.8
CVE-2024-58366
SurrealDB before 1.1.1 Format String via Scripting Functions
8.8
CVE-2024-58362
SurrealDB before 1.5.5 Query Injection via RPC API
