CVE-2026-63734

Medium

Description

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.

SeverityMedium

CVSS4.9

Exploit probability—

ProductSurrealdb

PublishedJul 20, 2026

First seenJul 20, 2026

Weakness typeCWE-20Improper input validation

How to fix

Update

surrealdb surrealdb3.2.0 or later

Vendor advisories

github.com/surrealdb/surrealdb/security/advisories/GHSA-jwr6-6444-28xv

Affected products

Product	Affected versions	Fixed in
surrealdb surrealdb	v < 3.2.0	3.2.0

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