PT-2025-54687 · Npm · N8N

Published 2025-12-26 · Updated 2025-12-26

OSV

CVSS v3.1

9.9

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Impact

A sandbox bypass vulnerability exists in the Python Code Node that uses Pyodide.

An authenticated user with permission to create or modify workflows can exploit this vulnerability to execute arbitrary commands on the host system running n8n, using the same privileges as the n8n process.

Patches

In n8n version 1.111.0, a task-runner-based native Python implementation was introduced as an optional feature, providing a more secure isolation model.

To enable it, you need to configure the N8N RUNNERS ENABLED and N8N NATIVE PYTHON RUNNER environment variables.

This implementation became the default starting with n8n version 2.0.0.

Workarounds

• Disable the Code Node by setting the environment variable NODES EXCLUDE: "["n8n-nodes-base.code"]" (Docs)
• Disable Python support in the Code node by setting the environment variable N8N PYTHON ENABLED=false, which was introduced in n8n version 1.104.0.
• Configure n8n to use the task runner based Python sandbox via the N8N RUNNERS ENABLED and N8N NATIVE PYTHON RUNNER environment variables. (Docs)

Resources

• n8n documentation: Blocking access to nodes
• n8n documentation: Code Node (Python)
• n8n documentation: Task Runners

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

GHSA-62R4-HW23-CC8V

Affected Products

N8N

References · 5

• https://osv.dev/vulnerability/GHSA-62r4-hw23-cc8v · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-68668 · Security Note
• https://github.com/n8n-io/n8n · Note
• https://github.com/n8n-io/n8n/security/advisories/GHSA-62r4-hw23-cc8v · Note
• https://smartkeyss.com/post/cve-2025-68668-breaking-out-of-the-python-sandbox-in-n8n · Note