Medium severity6.5NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026

CVE-2026-121423

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.

Affected products

Surrealdb/Surrealdbllm-fuzzy
Range: <3.3.0

Patches

Vulnerability mechanics

References

github.com/surrealdb/surrealdb/security/advisories/GHSA-rpmq-gq3f-h6jgnvd
www.vulncheck.com/advisories/surrealdb-before-3.3.0-dos-via-unbounded-recursion-in-val-value-serializationnvd

News mentions

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000