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CVE-2026-69256

CVE-2026-69256 · Flowise: Remote Code Execution Vulnerability in CSVAgent

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent node allowed users to provide Python code that is executed through pyodide; although a denylist blocked dangerous Python constructs, pandas.read_pickle() could deserialize a pickled payload and achieve code execution without matching the denied words. The affected file is flowise-components/nodes/agents/CSVAgent/CSVAgent.ts, where user-supplied customReadCSVFunc is evaluated as pd.${customReadCSVFunc}. An authenticated user who can create or modify a chatflow can add a CSV Agent, place a malicious read_pickle payload in the Additional Parameters, save the chatflow, and trigger /api/v1/prediction/<UUID> to execute commands. This issue is fixed in version 3.1.3.

CVSS 9.4 · Critical · EPSS 1.0% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • flowise

    Versions
    • < 3.1.3: Affected

    No fix published

  • flowise-components npm

    Affected ranges
    • SEMVER: < 3.1.3

    Update to 3.1.3

  • flowise npm

    Affected ranges
    • SEMVER: < 3.1.3

    Update to 3.1.3

Original sources

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