What’s Vulnerable › Vulnerabilities

CVE-2026-109333: SurrealDB 3.0.0 before 3.3.0 Cross-Tenant Record Read via RETURN FETCH

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-13
• Weakness: CWE-862

Description

SurrealDB from 3.0.0 before 3.3.0 contains an authorization bypass vulnerability that allows authenticated record users to read records in other namespaces or databases by resolving record ids through FETCH. Attackers can switch to a foreign namespace/database and name a known record id in a RETURN … FETCH query to read another tenant's data when table PERMISSIONS allow reads.

Affected products

• surrealdb: from 3.0.0 before 3.3.0 — fixed in 3.3.0

How to fix

Upgrade to a fixed version: surrealdb 3.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-3vw5-j55x-486h
• https://www.vulncheck.com/advisories/surrealdb-3.0.0-before-3.3.0-cross-tenant-record-read-via-return-fetch

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