CVE-2026-63756CWE-362

SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition

Critical · published July 20, 2026

CVSS v4.0
9.2
EPSS
0%
Percentile
29.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.2 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00368 · 29.5th percentile
Weakness
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published
2026-07-20T12:04Z
EPSS history
Timeline
  • 20 JUL 12:04Z
    SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
    cvelistv5