CVE-2026-63749 | SurrealDB versions before 3.1.0 contain an authentication by… | CVSS 4.3 MEDIUM

Description

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 instead of actual documents. Authenticated subscribers can bind chosen values to these parameter names and register LIVE SELECT queries to receive notifications for records that SELECT permission expressions should have hidden.

Metadata

CVE ID: CVE-2026-63749
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-18 12:26 UTC
Published: 2026-07-20 12:04 UTC
Last updated: 2026-07-20 13:46 UTC
Primary CWE: CWE-863
Incorrect Authorization
Vendor / Product: surrealdb / surrealdb
Sources: cve.org · NVD

Severity & Metrics

4.3 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
surrealdb	surrealdb	—	0 < 3.1.0, 3.1.0

Weakness (CWE)

CWE	Source	Description
CWE-863	cna	Incorrect Authorization

CVSS scores (2)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References (2)

GitHub Security Advisory (GHSA-6wqw-vhfr-9999) https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6wqw-vhfr-9999
VulnCheck Advisory: SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT https://www.vulncheck.com/advisories/surrealdb-before-authentication-bypass-via-live-select