What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-20 · updated 2026-07-23
• Weakness: CWE-639

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.

Affected products

• surrealdb: before 3.2.0 — fixed in 3.2.0

How to fix

Upgrade to a fixed version: surrealdb 3.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-848m-r628-vrxw
• https://www.vulncheck.com/advisories/surrealdb-before-authentication-bypass-via-custom-api

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