Vulnerability · Published Jul 20, 2026 · Assigned by VulnCheck
CVE-2026-63756SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
High 8.1
In plain English
A high-severity race condition in surrealdb from surrealdb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 69.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 requests to the /rpc endpoint while legitimate authenticated traffic is active to execute operations with hijacked user privileges.
Affected products (as reported)
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-4vgr-h27g-cf9p) vendor-advisory
- VulnCheck Advisory: SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition third-party-advisory