CVE-2026-42234
Last modified
CVE-2026-42234 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| N8n | N8n | < 1.123.32 |
| N8n | N8n | >= 2.17.0, < 2.17.4 |
| N8n | N8n | 2.18.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-42234?
How severe is CVE-2026-42234?
How do I fix CVE-2026-42234?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-42229n8n is an open source workflow automation platform. Prior to…8.8
- CVE-2026-4223A vulnerability was identified in itsourcecode Payroll Manag…9.8
- CVE-2026-42230n8n is an open source workflow automation platform. Prior to…6.1
- CVE-2026-42231n8n is an open source workflow automation platform. Prior to…8.8
- CVE-2026-42232n8n is an open source workflow automation platform. Prior to…8.8
- CVE-2026-42233n8n is an open source workflow automation platform. Prior to…9.8
- CVE-2026-42235n8n is an open source workflow automation platform. Prior to…9.6
- CVE-2026-42236n8n is an open source workflow automation platform. Prior to…7.5
- CVE-2026-42237n8n is an open source workflow automation platform. Prior to…8.8
- CVE-2026-42238Nginx UI is a web user interface for the Nginx web server. P…9.8
- CVE-2026-42239Budibase is an open-source low-code platform. Prior to versi…8.1
- CVE-2026-4224When an Expat parser with a registered ElementDeclHandler pa…7.5
Are you affected by CVE-2026-42234?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST