Vulnerability in Surrealdb
CVE-2026-63754
SurrealDB versions before 3.1.0 contain a denial of service vulnerability where malicious LIVE queries with WHERE clauses that evaluate to errors cause all CREATE, UPDATE, and DELETE operations on the watched table to fail. An authenticated user with only select permission can prevent write operations on a table for any user, including root, by registering a LIVE query that triggers evaluation errors until the query is killed or the session ends.
EPSS: 0.004 (37.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Surrealdb — versions 0, 3.1.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Patch, Vendor Advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-63754?
- CVE-2026-63754 is a medium-severity vulnerability in Surrealdb, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 6.5/10. Published 2026-07-20.
- How severe is CVE-2026-63754?
- Medium severity. CVSS v3 base score is 6.5 out of 10.