- A critical vulnerability (GHSA-62r4-hw23-cc8v) was disclosed in n8n’s Python Code Node, enabling arbitrary command execution.
- The flaw can let attackers execute system commands through workflows that use the Python Code Node, exposing organizations that run business-process automations.
- Administrators should treat this as high priority: check n8n advisories, apply available patches, and restrict use of untrusted code in workflows.
What happened: a dangerous flaw in n8n’s Python Code Node
Security researchers have identified a serious issue in the n8n automation platform’s Python Code Node, tracked under GHSA-62r4-hw23-cc8v. The vulnerability can allow arbitrary command execution when workflows invoke the Python Code Node, meaning an attacker who can control or inject code into a workflow could run system-level commands on the host running n8n.
Why this matters
n8n is widely used to automate business processes and integrate services. Python Code Node is designed to let users run custom Python within workflows — a powerful feature that also increases attack surface if not isolated. Arbitrary command execution in this component could lead to full system compromise, data theft, lateral movement across networks, or disruption of automated business functions.
Scope and impact
- Component affected: Python Code Node in n8n.
- Vulnerability ID: GHSA-62r4-hw23-cc8v.
- Potential impact: remote command execution on hosts running n8n workflows, depending on access and configuration.
Recommended actions — immediate and short-term
- Check for official n8n advisories and apply any available patches or updates immediately. Treat this as high-priority maintenance.
- Disable or remove Python Code Node usage in production workflows until you confirm the node is patched or appropriately sandboxed.
- Limit who can create or edit workflows — enforce least-privilege controls and review audit logs for unusual changes.
- Isolate n8n instances: run n8n in segmented network zones and limit host-level permissions to the minimum required.
- Use runtime sandboxing where possible and avoid executing untrusted or externally supplied code within workflows.
Monitoring and investigation
Administrators should scan logs for suspicious activity, such as unexpected process launches or network connections from the n8n host. If compromise is suspected, follow incident-response procedures: isolate the host, preserve logs, and notify stakeholders.
Final note
This vulnerability underscores the trade-off between automation flexibility and operational security. Organizations relying on n8n should act quickly — confirm patched versions, harden controls around workflow editing, and limit execution privileges. For the latest guidance and patched releases, consult the official n8n security advisory and repository.
Image Referance: https://cyberpress.org/n8n-automation-platform-hit-by-arbitrary-command-execution-flaw/