CVE-2026-63734: Surrealdb

Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Surrealdb Surrealdb: before 3.2.0 (fixed in 3.2.0)

Published 2026-07-20. Last modified 2026-07-22.