CVE-2026-109334

CVSS 8.6 (high) · published 2026-10-12

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.

Weakness: CWE-639

Source: NVD CVE-2026-109334

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-w5v9-jc5f-5rmc
• https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-surreal-ns-surreal-db-headers-and-rpc-use

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