n8n — Sandbox Escape (CVE-2026-49444)
Date: 2026-06
Affected: n8n/n8n
Attack vector: sandbox-escape
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-49444
CWE: CWE-20
CVSS: 8.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N)

n8n is an open source workflow automation platform. Prior to 1.123.48, 2.21.8, and 2.22.4, 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 vulnerability is fixed in 1.123.48, 2.21.8, and 2.22.4.


Mitigations:

Architectural layers (MAESTRO):