Vulnerability in Surrealdb
CVE-2026-63753
SurrealDB before 3.1.0 fails to refresh authentication state in LIVE SELECT subscriptions when session state changes. Attackers can continue receiving real-time notifications under revoked or expired session credentials until the connection closes.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Surrealdb — versions 0, 3.1.0
Weakness classification (CWE)
References
- github.com/surrealdb/surrealdb/security/advisories/GHSA-4m82-p8cx-f94j (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/surrealdb-before-authentication-bypass-via-live-qu… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-63753?
- CVE-2026-63753 is a medium-severity vulnerability in Surrealdb, classified under Insufficient Session Expiration. CVSS score: 4.3/10. Published 2026-07-20.
- How severe is CVE-2026-63753?
- Medium severity. CVSS v3 base score is 4.3 out of 10.