high8.8
CVE-2026-42234
n8n has a Python Task Runner Sandbox Escape Vulnerability
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | n8n | < 1.123.32 | 1.123.32 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| N8n | N8n | before 1.123.32 from 2.17.0 before 2.17.4 Version 2.18.0 |