CVE-2026-109334

High

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.

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-w5v9-jc5f-5rmc

Affected products

Product	Affected versions	Fixed in
surrealdb surrealdb	v < 3.3.0	3.3.0

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