Flowise is a drag & drop user interface to build a customized large language model flow. In version 1.4.3 of Flowise, A CORS misconfiguration sets the Access-Control-Allow-Origin header to all, allowing arbitrary origins to connect to the website. In the default configuration (unauthenticated), arbitrary origins may be able to make requests to Flowise, stealing information from the user. This CORS misconfiguration may be chained with the path injection to allow an attacker attackers without access to Flowise to read arbitrary files from the Flowise server. As of time of publication, no known patches are available.
Use CWE-346, Flowiseai vendor hub and Flowise product page to widen CVE-2024-36421 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-41268, CVE-2026-41278 and CVE-2026-41271 for nearby disclosures in the same product family.