Vulnerability · Published Jul 20, 2026 · Assigned by VulnCheck

CVE-2026-63757SurrealDB before 3.1.0 Session Hijacking via /rpc sessions

High 8.8

In plain English

A high-severity missing authentication 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 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 54.6% 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 session hijacking vulnerability where the HTTP /rpc sessions method returns attached session UUIDs without authentication and accepts arbitrary session fields with no ownership verification. Unauthenticated attackers can enumerate session UUIDs and impersonate authenticated sessions to read, write, delete data and escalate privileges.

Affected products (as reported)

Vendor	Product	Versions
surrealdb	surrealdb	0 – before 3.1.0

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-5qfp-32cf-69jh) vendor-advisory
VulnCheck Advisory: SurrealDB before 3.1.0 Session Hijacking via /rpc sessions third-party-advisory