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CVE-2026-41273

CVE-2026-41273 · Flowise: Unauthenticated OAuth 2.0 Access Token Disclosure via Public Chatflow

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens associated with a public chatflow. By accessing a public chatflow configuration endpoint, an attacker can retrieve internal workflow data, including OAuth credential identifiers, which can then be used to refresh and obtain valid OAuth 2.0 access tokens without authentication. This vulnerability is fixed in 3.1.0.

CVSS 7.7 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • flowise

    Versions
    • < 3.1.0: Affected

    No fix published

  • flowise npm

    Affected ranges
    • SEMVER: < 3.1.0

    Update to 3.1.0

Original sources

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