CVE-2026-63743: SurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect
SurrealDB before 3.1.0 contains a capability bypass vulnerability in HTTP redirect handling that allows authenticated users to circumvent port-scoped --deny-net rules. Attackers can chain an HTTP redirect from an allowed hostname to a denied host:port combination, and the redirect is followed because the port information is dropped during redirect policy evaluation.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63743?
The severity of CVE-2026-63743 is rated as medium with a score of 5.3.
How do I fix CVE-2026-63743?
To fix CVE-2026-63743, upgrade SurrealDB to version 3.1.0 or later, which addresses the vulnerability.
What type of vulnerability is CVE-2026-63743?
CVE-2026-63743 is a capability bypass vulnerability related to HTTP redirect handling.
Who is affected by CVE-2026-63743?
Authenticated users of SurrealDB versions prior to 3.1.0 are affected by CVE-2026-63743.
What impact does CVE-2026-63743 have?
CVE-2026-63743 allows attackers to bypass port-scoped deny rules through HTTP redirects, which could lead to unauthorized access.