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CVE-2026-41267: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.…

Occurred
Apr 23, 2026
Published
Apr 23, 2026
Source
NVD CVE

Summary

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.

Tags

  • CVE
  • CVE-2026-41267
  • cvss:HIGH

Classification

Category confidence: 90%
Severity confidence: 85%

Rationale: Vulnerability in LLM workflow tool Flowise allows unauthorized metadata manipulation in multi-tenant environment.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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