CVE-2026-109334GHSA-w5v9-jc5f-5rmc
SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use
surrealdb surrealdb
CVSS
8.6HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 3.3.0surrealdbCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
SurrealDB before 3.3.0 does not check the caller-selected namespace or database against the level at which a namespace- or database-level system user authenticated, allowing cross-tenant access. An authenticated attacker can set the Surreal-NS/Surreal-DB headers on /sql or call the RPC use method to read, create, modify, and delete rows and read DEFINE PARAM values in another tenant where table PERMISSIONS allow it.
Text from CVE List
Affected versions 2
- surrealdbaffected: all versions before 3.3.0CVE List
- surrealdbunaffected: 3.3.0CVE List