Mass Assignment Vulnerability in Flowise by FlowiseAI
CVE-2026-46441

7.6HIGH

Key Information:

Vendor

Flowiseai

Status
Flowise
Vendor
CVE Published:
8 June 2026

What is CVE-2026-46441?

A mass assignment vulnerability has been discovered in Flowise's assistant update endpoint, allowing authenticated users to change server-controlled properties such as workspaceId, createdDate, and updatedDate. This vulnerability stems from insufficient server-side validation and authorization checks, which enables an attacker to manipulate the workspaceId and incorrectly reassign assistants to arbitrary workspaces. This compromises tenant isolation within multi-workspace setups. The issue was resolved in version 3.1.2.

Affected Version(s)

Flowise < 3.1.2

References

https://github.com/FlowiseAI/Flowise/security/advisories/...
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https://github.com/FlowiseAI/Flowise/releases/tag/flowise...
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CVSS V4

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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