GHSA-3769-jgqc-cxm7: Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

Summary

Flowise's executeJavaScriptCode() function merges caller-supplied nodeVMOptions into its NodeVM sandbox defaults using the JavaScript spread operator, so caller values override the secure settings. An authenticated user can set require.builtin to ["*"] and re-enable child_process and fs, running arbitrary system commands as root on the Flowise server. The flaw is reached through the route in packages/server/src/routes/node-custom-functions/index.ts and the executeCustomNodeFunction() service in packages/server/src/utils/executeCustomNodeFunction.ts.

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

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