CVE-2026-63735 SurrealDB before 3.2.0 Authentication Bypass via Custom API

What is CVE-2026-63735?

CVE-2026-63735 is a high-severity missing authorization vulnerability in Surrealdb Surrealdb, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

SurrealDB versions before 3.2.0 fail to validate namespace and database scope in custom API routes, allowing authenticated users to invoke endpoints in different namespaces/databases. Attackers with valid credentials for any namespace/database can access custom API endpoints in other tenants by specifying the target scope in the URL path, reading sensitive data or triggering unintended operations.

Weakness: CWE-639

Which versions are affected by CVE-2026-63735?

2 open source packages ship an affected version, including surrealdb. It affects 1 product.

Products include Surrealdb Surrealdb.

How do I fix CVE-2026-63735?

Upgrade surrealdb to 3.2.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-63735 being exploited?

There is no known exploitation of CVE-2026-63735 in the wild and no public exploit code.

Other vulnerabilities in Surrealdb Surrealdb

• CVE-2025-71392 SurrealDB before 2.2.2 SurrealQL Injection via export Critical 9.4
• CVE-2026-63756 SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition Critical 9.2
• CVE-2026-63747 SurrealDB before 3.1.0 Denial of Service via malformed RPC use High 8.7
• CVE-2026-63757 SurrealDB before 3.1.0 Session Hijacking via /rpc sessions High 8.7
• CVE-2026-63760 SurrealDB before 3.1.0 Denial of Service via JSON Parser High 8.7

All Surrealdb Surrealdb vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-848m-r628-vrxw.