CVE-2026-41267 HIGH

CVE-2026-41267: Flowise: Improper Mass Assignment in Account Registration Enables Unauthorized Organization Association

Vendor Flowiseai
Product Flowise
Weakness CWE-639 · IDOR
Published April 23, 2026
Last update April 23, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment. This vulnerability is fixed in 3.1.0.

Key dates

02Disclosure timeline

April 23, 2026 CVE published
April 23, 2026 Record updated

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