CVE-2026-63734

SurrealDB versions before 3.2.0 contain a denial of service vulnerability in the SurrealML header parser that allows authenticated Owner-role users to crash the server by uploading a malformed .surml file to the /ml/import endpoint. Attackers can supply non-numeric input-dimensions or other malformed header fields that trigger unchecked unwrap calls, causing a panic that aborts the entire server process and denies service to all databases.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

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-jwr6-6444-28xv	Vendor Advisory Mitigation
https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malformed-surrealml-import	Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

22 Jul 2026, 15:52

Type	Values Removed	Values Added
First Time		Surrealdb Surrealdb surrealdb
References	~~() https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jwr6-6444-28xv -~~	() https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jwr6-6444-28xv - Vendor Advisory, Mitigation
References	~~() https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malformed-surrealml-import -~~	() https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malformed-surrealml-import - Third Party Advisory
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 15:52

NVD link : CVE-2026-63734

Mitre link : CVE-2026-63734

CVE.ORG link : CVE-2026-63734

JSON object : View

Products Affected

surrealdb

surrealdb

CWE

CWE-20

Improper Input Validation

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