CVE-2026-121423

Medium

Description

SurrealDB before 3.3.0 contains an unbounded recursion vulnerability that allows authenticated users to abort the surreald process by triggering stack overflow on deeply nested values. Attackers can repeatedly run UPDATE statements wrapping a stored array in itself, then SELECT or EXPORT it, causing persistent denial of service for all tenants.

SeverityMedium

CVSS6.5

Exploit probability—

ProductSurrealdb

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-674CWE-674

How to fix

Update

surrealdb surrealdb3.3.0 or later

Vendor advisories

github.com/surrealdb/surrealdb/security/advisories/GHSA-rpmq-gq3f-h6jg

Affected products

Product	Affected versions	Fixed in
surrealdb surrealdb	v < 3.3.0	3.3.0

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