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Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, /api/v1/public-chatbotConfig/:id ep exposes sensitive data including API keys, HTTP authorization headers and internal configuration without any authentication. An attacker with knowledge just of a chatflow UUID can retrieve credentials stored in password type fields and HTTP headers, leading to credential theft and more. This vulnerability is fixed in 3.1.0.
Use CWE-200, Flowiseai vendor hub and Flowise product page to widen CVE-2026-41266 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.