CVE-2026-42234CWE-94

n8n: Python Task Runner Sandbox Escape

High · published May 4, 2026

CVSS v4.0
7.1
EPSS
1%
Percentile
50.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.1 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00653 · 50.7th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-05-04T18:36Z
EPSS history
Timeline
  • 04 MAY 18:36Z
    n8n: Python Task Runner Sandbox Escape
    cvelistv5