Vulnerability in Surrealdb
CVE-2026-63756
SurrealDB versions before 3.1.0 contain a time-of-check/time-of-use race condition in the HTTP /rpc endpoint that allows unauthenticated requests to inherit authenticated session state. Unauthenticated attackers can send concurrent request…
Vulnerability class: Race Condition
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Surrealdb — versions 0, 3.1.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-63756?
- CVE-2026-63756 is a high-severity vulnerability in Surrealdb, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.1/10. Published 2026-07-20.
- How severe is CVE-2026-63756?
- High severity. CVSS v3 base score is 8.1 out of 10.