CVE-2026-30820

Flowise, a UI for building LLM flows, is affected pre-3.0.13. The vulnerability arises because the server trusts any HTTP client that sends the header x-request-from: internal, allowing an authenticated tenant with only a session cookie to bypass /api/v1/** authorization checks and access interna...

CVE-2026-30820 Flowise Authorization Bypass via Spoofed x-request-from Header

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, Flowise trusts any HTTP client that sets the header x-request-from: internal, allowing an authenticated tenant session to bypass all /api/v1/ authorization checks. With only a browser...