Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck

CVE-2026-109343SurrealDB before 3.3.0 Cross-Tenant Access via USE Statement

High 8.1

In plain English

A high-severity authorization bypass via user-controlled key in surrealdb from surrealdb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.3%top 82.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

SurrealDB before 3.3.0 allows cross-tenant access because the SurrealQL USE statement switches a session to any namespace/database without checking that the caller's authenticated level covers it. Authenticated namespace, database, or record users can switch to another tenant and read, create, update, or delete rows in tables whose PERMISSIONS allow it, such as PERMISSIONS FULL.

Affected products (as reported)

Vendor	Product	Versions
surrealdb	surrealdb	0 – before 3.3.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-2v9j-645m-pcrq) vendor-advisory
VulnCheck Advisory: SurrealDB before 3.3.0 Cross-Tenant Access via USE Statement third-party-advisory