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CVE-2026-41264

CVE-2026-41264 · Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability

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 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM generated python script. An attacker can leverage this vulnerability to execute code in the context of the user running the server. Using prompt injection techniques, an unauthenticated attacker with the ability to send prompts to a chatflow using the CSV Agent node may convince an LLM to respond with a malicious python script that executes attacker controlled commands on the Flowise server. This vulnerability is fixed in 3.1.0.

CVSS 9.2 · Critical · EPSS 1.4% · Public exploit · Fix available

Published
Updated

Stack: node

Affected products and versions

  • flowise

    Versions
    • < 3.1.0: Affected

    No fix published

  • flowise npm

    Affected ranges
    • SEMVER: < 3.1.0

    Update to 3.1.0

  • flowise-components npm

    Affected ranges
    • SEMVER: < 3.1.0

    Update to 3.1.0

Original sources

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