Auth bypass in Surrealdb
CVE-2026-109333
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/surrealdb/surrealdb/security/advisories/GHSA-3vw5-j55x-486h (vendor-advisory)
- www.vulncheck.com/advisories/surrealdb-3.0.0-before-3.3.0-cross-tenant-record-r… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109333?
- CVE-2026-109333 is a medium-severity vulnerability in Surrealdb, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-10-12.
- How severe is CVE-2026-109333?
- Medium severity. CVSS v3 base score is 6.5 out of 10.