Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Surrealdb | Surrealdb | < 3.2.0 |
Related Weaknesses (CWE)
References
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jwr6-6444-28xvVendor AdvisoryMitigation
- https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malfThird Party Advisory
FAQ
What is CVE-2026-63734?
CVE-2026-63734 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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 ...
How severe is CVE-2026-63734?
CVE-2026-63734 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63734?
Check the references section above for vendor advisories and patch information. Affected products include: Surrealdb Surrealdb.