What is CVE-2026-109337?

CVE-2026-109337 is a medium-severity vulnerability in Surrealdb, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2026-10-12.

How severe is CVE-2026-109337?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Surrealdb

CVE-2026-109337

SurrealDB before 3.3.0 contains an authorization bypass vulnerability that allows record users to infer field values hidden by field-level SELECT permissions using LIVE SELECT WHERE predicates over $before or $after. Attackers can craft repeated predicates and observe whether notifications are delivered on CREATE, UPDATE, or DELETE to confirm or narrow restricted field values.

Published 2026-10-12 · last modified 2026-10-12.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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

Surrealdb

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

github.com/surrealdb/surrealdb/security/advisories/GHSA-jm88-9wvx-6h4q (vendor-advisory)
www.vulncheck.com/advisories/surrealdb-before-3.3.0-field-permission-bypass-via… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109337?: CVE-2026-109337 is a medium-severity vulnerability in Surrealdb, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2026-10-12.
How severe is CVE-2026-109337?: Medium severity. CVSS v3 base score is 4.3 out of 10.