PT-2025-54687 · Npm · N8N

Publicado 2025-12-26 · Atualizado 2025-12-26

OSV

CVSS v3.1

9.9

Crítica

Vetor base

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

Correção

Protection Mechanism Failure

Enumeração de Fraquezas

CWE-693

Identificadores relacionados

GHSA-62R4-HW23-CC8V

Produtos afetados

N8N

Referências · 5

• https://github.com/n8n-io/n8n · Nota
• https://github.com/n8n-io/n8n/security/advisories/GHSA-62r4-hw23-cc8v · Nota
• https://osv.dev/vulnerability/GHSA-62r4-hw23-cc8v · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2025-68668 · Nota de Segurança
• https://smartkeyss.com/post/cve-2025-68668-breaking-out-of-the-python-sandbox-in-n8n · Nota