GHSA-cvrr-qhgw-2mm6: Flowise: Parameter Override Bypass Remote Command Execution

Summary

Flowise is vulnerable to unauthenticated remote command execution through a parameter override bypass. The FILE-STORAGE:: check in replaceInputsWithConfig in packages/server/src/utils/index.ts uses .includes() rather than .startsWith(), so an attacker can embed the keyword in a string and skip the isParameterEnabled() check. This lets the attacker set NODE_OPTIONS through the Custom MCP node, which does not block it, and run arbitrary code with root privileges in the container. The attack requires a single HTTP request, plus API Override enabled and a public chatflow containing an MCP tool node.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

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
• flowise-componentsnpmLLM dependency since 2023-04-10 · 1 tracked dependent

Topics

• Model Context Protocol

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