CVE-2026-63749 Details
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.
An authentication bypass vulnerability has been identified in SurrealDB versions prior to 3.1.0. This vulnerability exists in LIVE SELECT subscriptions, where permission expressions referencing $value, $before, $after, or $event are incorrectly evaluated against values controlled by the attacker instead of the actual documents. As a result, authenticated subscribers can manipulate these parameter names to receive notifications about records that should have been hidden by SELECT permissions.
Users can update to SurrealDB version 3.1.0 or later, where this vulnerability has been patched. For those unable to update, it is advised to avoid using table permissions and LIVE WHERE expressions that reference user-named variables without also including a system-derived field, such as the record ID.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6wqw-vhfr-9999 | [email protected] | Vendor AdvisoryMitigation |
| https://www.vulncheck.com/advisories/surrealdb-before-authentication-bypass-via-live-select | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| surrealdb surrealdb | < 3.1.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | Initial Analysis | [email protected] |
| Jul 20, 2026 | CVE Modified | CISA-ADP |
| Jul 20, 2026 | New CVE Received | [email protected] |