CVE-2026-63754 SurrealDB before 3.1.0 Denial of Service via LIVE Query

High 7.1 Published 20 Jul 2026 Updated 28 Jul 2026

An authenticated user with select permissions can cause denial of service on write operations by registering malicious LIVE queries.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-63754?

CVE-2026-63754 is a high-severity denial of service vulnerability in Surrealdb Surrealdb, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-754

Which versions are affected by CVE-2026-63754?

It affects 1 product.

Products include Surrealdb Surrealdb.

How do I fix CVE-2026-63754?

No fix has been published for CVE-2026-63754 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-63754 being exploited?

There is no known exploitation of CVE-2026-63754 in the wild and no public exploit code.

All Surrealdb Surrealdb vulnerabilities

Sources

Also known as GHSA-grg2-m369-7vhm.