CVE-2026-63734 MEDIUM

CVE-2026-63734: SurrealDB before 3.2.0 Denial of Service via malformed SurrealML import

Vendor Surrealdb
Product surrealdb
Weakness CWE-20 · Input validation
Published July 20, 2026
Last update July 20, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 20, 2026 CVE published
July 20, 2026 Record updated

Related vulnerabilities

04Related CVE