GHSA-4j8x-x6v7-w9rq: Flowise: RCE via CSVAgent csvFile data URI base64 segment is interpolated into Python source without validation

Summary

Flowise's CSVAgent node interpolates an unvalidated base64 segment from the csvFile data URI directly into a Python template run by Pyodide. Because Pyodide's default js bridge exposes eval and dynamic import() on Node.js, an injected payload can break out of the string literal and execute code in the host Node.js process, not the WASM sandbox. A workspace user with chatflows:create can plant the crafted node, and any unauthenticated request to the public POST /api/v1/prediction/:id endpoint then triggers the RCE.

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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