Authorization Bypass Through User-Controlled Key Affecting flowise package, versions <3.1.3


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Authorization Bypass Through User-Controlled Key vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-JS-FLOWISE-18600572
  • published9 Aug 2026
  • disclosed4 Aug 2026
  • creditUnknown

Introduced: 4 Aug 2026

New CVE NOT AVAILABLE CWE-639  (opens in a new tab)

How to fix?

Upgrade flowise to version 3.1.3 or higher.

Overview

flowise is a Flowiseai Server

Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the customerId parameter in the GET /api/v1/organization/customer-default-source endpoint. An attacker can access sensitive payment and profile information of other users by manipulating this parameter to reference arbitrary customer IDs while authenticated.

CVSS Base Scores

version 4.0
version 3.1