What’s Vulnerable › Vulnerabilities

CVE-2026-63749: SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-20 · updated 2026-07-22
• Weakness: CWE-863

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.

Affected products

• surrealdb: before 3.1.0 — fixed in 3.1.0

How to fix

Upgrade to a fixed version: surrealdb 3.1.0. Check the vendor advisory for mitigations.

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6wqw-vhfr-9999
• https://www.vulncheck.com/advisories/surrealdb-before-authentication-bypass-via-live-select

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