Is CVE-2026-63756 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-63756?

CVE-2026-63756 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-63756

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.