What is CVE-2026-63761?

CVE-2026-63761 is a medium-severity vulnerability in Surrealdb, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 4.3/10. Published 2026-07-20.

How severe is CVE-2026-63761?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Surrealdb

CVE-2026-63761

SurrealDB before 3.1.0 silently substitutes the ES384 algorithm when a JWT access method is configured with ALGORITHM ES512 (DEFINE ACCESS ... TYPE JWT ALGORITHM ES512), because the underlying jsonwebtoken crate (v10.x) has no ES512 varian…

Vulnerability class: POODLE (CVE-2014-3566)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Surrealdb — versions 0, 3.1.0

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

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

Frequently asked questions

What is CVE-2026-63761?: CVE-2026-63761 is a medium-severity vulnerability in Surrealdb, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 4.3/10. Published 2026-07-20.
How severe is CVE-2026-63761?: Medium severity. CVSS v3 base score is 4.3 out of 10.