Mass Assignment Vulnerability in Flowise Drag & Drop User Interface
CVE-2026-46477

7.7HIGH

Key Information:

Vendor

Flowiseai

Status
Flowise
Vendor
CVE Published:
8 June 2026

What is CVE-2026-46477?

Flowise, a user-friendly drag & drop interface designed for customizing large language model flows, experienced a significant vulnerability before version 3.1.2. This security issue allowed unauthorized users to exploit mass assignment capabilities in dataset creation and updates, which potentially led to cross-workspace dataset takeover. Users are strongly encouraged to upgrade to version 3.1.2 or later to mitigate this risk and protect their data against unauthorized access.

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:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.