CVE-2026-42234 | THREATINT

Description

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.

PUBLISHED Reserved 2026-04-25 | Published 2026-05-04 | Updated 2026-05-05 | Assigner GitHub_M

HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-94: Improper Control of Generation of Code ('Code Injection')

Product status

< 1.123.32

affected

>= 2.17.0, < 2.17.4

affected

>= 2.18.0, < 2.18.1

affected

References

github.com/...io/n8n/security/advisories/GHSA-44v6-jhgm-p3m4

cve.org (CVE-2026-42234)

nvd.nist.gov (CVE-2026-42234)

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