CVE-2026-63747 | SurrealDB versions before 3.1.0 contain a denial of service … | CVSS 7.5 HIGH

Description

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 the server process.

Metadata

CVE ID: CVE-2026-63747
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-18 12:26 UTC
Published: 2026-07-20 12:04 UTC
Last updated: 2026-07-20 12:04 UTC
Primary CWE: CWE-248
Uncaught Exception
Vendor / Product: surrealdb / surrealdb
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products (1)

Vendor	Product	Platform	Versions
surrealdb	surrealdb	—	0 < 3.1.0, 3.1.0

Weakness (CWE)

CWE	Source	Description
CWE-248	cna	Uncaught Exception

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (2)

GitHub Security Advisory (GHSA-wjjj-24cx-f28g) https://github.com/surrealdb/surrealdb/security/advisories/GHSA-wjjj-24cx-f28g
VulnCheck Advisory: SurrealDB before 3.1.0 Denial of Service via malformed RPC use https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malformed-rpc-use