CVE-2026-63754

SurrealDB versions before 3.1.0 contain a denial of service vulnerability where malicious LIVE queries with WHERE clauses that evaluate to errors cause all CREATE, UPDATE, and DELETE operations on the watched table to fail. An authenticated user with only select permission can prevent write operations on a table for any user, including root, by registering a LIVE query that triggers evaluation errors until the query is killed or the session ends.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-4v76-cw68-4vc9	Vendor Advisory Patch
https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-live-query	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*

History

22 Jul 2026, 15:20

Type	Values Removed	Values Added
References	~~() https://github.com/surrealdb/surrealdb/security/advisories/GHSA-4v76-cw68-4vc9 -~~	() https://github.com/surrealdb/surrealdb/security/advisories/GHSA-4v76-cw68-4vc9 - Vendor Advisory, Patch
References	~~() https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-live-query -~~	() https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-live-query - Third Party Advisory
First Time		Surrealdb Surrealdb surrealdb
CPE		cpe:2.3:a:surrealdb:surrealdb::::::::

20 Jul 2026, 12:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-20 12:19

Updated : 2026-07-22 15:20

NVD link : CVE-2026-63754

Mitre link : CVE-2026-63754

CVE.ORG link : CVE-2026-63754

JSON object : View

Products Affected

surrealdb

surrealdb

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

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