---
id: CVE-2026-49444
title: 'n8n: Python sandbox escape'
summary: 'n8n: Python sandbox escape'
severity: high
cvss: 8.5
cwe:
  - CWE-20
vendor: n8n
product: n8n
ecosystem: npm
affected:
  - n8n < 1.123.48
  - 'n8n >= 2.22.0, < 2.22.4'
  - 'n8n >= 2.0.0-rc.0, < 2.21.8'
patched:
  - n8n 1.123.48
  - n8n 2.22.4
  - n8n 2.21.8
published: '2026-06-16'
updated: '2026-06-16'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-9pq8-m8gp-4p53'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-9pq8-m8gp-4p53'
  - url: 'https://github.com/advisories/GHSA-9pq8-m8gp-4p53'
tags:
  - ghsa
  - npm
epss: 0.00385
epssPercentile: 0.29799
ingestedAt: '2026-06-29T14:31:47.729Z'
---

## Overview

## Impact
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.

## Patches
The issue has been fixed in n8n versions 1.123.48, 2.21.8, and 2.22.4. Users should upgrade to one of these versions or later to remediate the vulnerability.

## Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations:
- Limit workflow creation and editing permissions to fully trusted users only.
- Disable the Python Code node by adding `n8n-nodes-base.code` to the `NODES_EXCLUDE` environment variable, or disable the Python Task Runner entirely.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

## Affected packages

- `n8n < 1.123.48`
- `n8n >= 2.22.0, < 2.22.4`
- `n8n >= 2.0.0-rc.0, < 2.21.8`

## Remediation

Upgrade to a patched release:

- `n8n 1.123.48`
- `n8n 2.22.4`
- `n8n 2.21.8`