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CVE-2026-42234

CVE-2026-42234 · n8n: Python Task Runner Sandbox Escape

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

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with permission to create or modify workflows containing a Python Code Node could escape the sandbox and achieve arbitrary code execution on the task runner container. This issue only affects instances where the Python Task Runner is enabled. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.

CVSS 7.1 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • < 1.123.32: Affected
    • >= 2.17.0, < 2.17.4: Affected
    • >= 2.18.0, < 2.18.1: Affected

    No fix published

  • n8n npm

    Affected ranges
    • SEMVER: < 1.123.32

    Update to 1.123.32

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.18.0, < 2.18.1

    Update to 2.18.1

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.17.0, < 2.17.4

    Update to 2.17.4

Original sources

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