What is CVE-2026-63749?

CVE-2026-63749 is a medium-severity vulnerability in Surrealdb, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-07-20.

How severe is CVE-2026-63749?

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

Auth bypass in Surrealdb

CVE-2026-63749

SurrealDB versions before 3.1.0 contain an authentication bypass vulnerability in LIVE SELECT subscriptions where permission expressions referencing $value, $before, $after, or $event are evaluated against attacker-controlled bindings inst…

Vulnerability class: Broken Access Control

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.

Affected products

Surrealdb — versions 0, 3.1.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-63749?: CVE-2026-63749 is a medium-severity vulnerability in Surrealdb, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-07-20.
How severe is CVE-2026-63749?: Medium severity. CVSS v3 base score is 4.3 out of 10.