CVE-2026-121423

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.

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-rpmq-gq3f-h6jg
https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-dos-via-unbounded-recursion-in-val-value-serialization

Configurations

No configuration.

History

03 Nov 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-03 15:17

Updated : 2026-11-03 15:17

NVD link : CVE-2026-121423

Mitre link : CVE-2026-121423

CVE.ORG link : CVE-2026-121423

JSON object : View

Products Affected

No product.

CWE

CWE-674

Uncontrolled Recursion

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