CVE-2026-41267

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mj	Exploit Vendor Advisory
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mj	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*

History

24 Apr 2026, 15:14

Type	Values Removed	Values Added
CPE		cpe:2.3:a:flowiseai:flowise::::::::
First Time		Flowiseai Flowiseai flowise
References	~~() https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mj -~~	() https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mj - Exploit, Vendor Advisory

23 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-23 20:16

Updated : 2026-04-24 15:14

NVD link : CVE-2026-41267

Mitre link : CVE-2026-41267

CVE.ORG link : CVE-2026-41267

JSON object : View

Products Affected

flowiseai

flowise

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-915

Improperly Controlled Modification of Dynamically-Determined Object Attributes

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