What is CVE-2026-63747?

CVE-2026-63747 is a high-severity vulnerability in Surrealdb, classified under CWE-248. CVSS score: 7.5/10. Published 2026-07-20.

How severe is CVE-2026-63747?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Surrealdb

CVE-2026-63747

SurrealDB versions before 3.1.0 contain a denial of service vulnerability in the RPC use handler that panics when db is set without a namespace. Unauthenticated attackers can send a malformed WebSocket message to the /rpc endpoint to crash…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Surrealdb — versions 0, 3.1.0

Weakness classification (CWE)

CWE-248

References

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

Frequently asked questions

What is CVE-2026-63747?: CVE-2026-63747 is a high-severity vulnerability in Surrealdb, classified under CWE-248. CVSS score: 7.5/10. Published 2026-07-20.
How severe is CVE-2026-63747?: High severity. CVSS v3 base score is 7.5 out of 10.