CVE-2026-63747

8.7 highEPSS 0.5%

High (8.7) in surrealdb surrealdb. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

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

CVSS 3.1

7.5 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
CWE: CWE-248
Published: 2026-07-20
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19

Affected

surrealdb:surrealdb

References

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-wjjj-24cx-f28g
https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malformed-rpc-use

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