What is CVE-2026-63734?

CVE-2026-63734 is a medium-severity vulnerability in Surrealdb, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2026-07-20.

How severe is CVE-2026-63734?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Improper input validation in Surrealdb

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. Attack…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Surrealdb — versions 0, 3.2.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-63734?: CVE-2026-63734 is a medium-severity vulnerability in Surrealdb, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2026-07-20.
How severe is CVE-2026-63734?: Medium severity. CVSS v3 base score is 4.9 out of 10.