CVE-2026-41267: Flowise mass assignment in account registration endpoint of Flowise Cloud

Summary

Flowise, a drag-and-drop interface for building LLM flows, has an improper mass assignment (JSON injection) flaw in the account registration endpoint of Flowise Cloud before version 3.1.0. Unauthenticated attackers can inject server-managed fields and nested objects during account creation, letting them set ownership metadata, timestamps, organization association and role mappings, which breaks trust boundaries in the multi-tenant environment.

Mitigation

Fixed in 3.1.0.

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

• flowisenpmLLM dependency since 2024-03-12

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