CVE-2026-63756
HIGHSurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-4vgr-h27g-cf9p)
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-4vgr-h27g-cf9p
Third Party Advisory third-party-advisory
VulnCheck Advisory: SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
https://www.vulncheck.com/advisories/surrealdb-before-privilege-escalation-via-rpc-session-race-condition
Scores
CVSS v3
8.1
EPSS
0.0027
EPSS Percentile
19.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-362
Status
published
Products (2)
surrealdb/surrealdb
< 3.1.0 (2 CPE variants)
surrealdb/surrealdb
3.1.0
Published
Jul 20, 2026
Tracked Since
Jul 20, 2026