CVE-2026-63747

HIGH

SurrealDB before 3.1.0 Denial of Service via malformed RPC use

Title source: cna
STIX 2.1

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.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-wjjj-24cx-f28g)
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-wjjj-24cx-f28g
Third Party Advisory third-party-advisory
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

Scores

CVSS v3 7.5
EPSS 0.0036
EPSS Percentile 28.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-248
Status published
Products (2)
surrealdb/surrealdb < 3.1.0 (2 CPE variants)
surrealdb/surrealdb 3.1.0
Published Jul 20, 2026
Tracked Since Jul 20, 2026