CVE-2026-109343

High

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.

SeverityHigh

CVSS8.1

Exploit probability—

ProductSurrealdb

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

surrealdb surrealdb3.3.0 or later

Vendor advisories

github.com/surrealdb/surrealdb/security/advisories/GHSA-2v9j-645m-pcrq

Affected products

Product	Affected versions	Fixed in
surrealdb surrealdb	v < 3.3.0	3.3.0

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