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CVE-2026-42234

n8n: Python Task Runner Sandbox Escape

Published: May 4, 2026Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-94
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.4%
Top 72.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

n8nn8n-io
Mixed
Cloud & SaaS / saas-application
n8nn8n
Mixed
Cloud & SaaS / saas-application
N8nСообщество свободного программного обеспечения
On-premLibrary
OSS Libraries / generic-library
n8n-iocommercialDECloud & SaaSaka n8n
n8noss-projectCloud & SaaS
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

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

Timeline

Published
May 4, 2026
Last Updated
May 6, 2026

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