n8n Security Audit Automation

Security audit for n8n instances that identifies real infrastructure risks and delivers AI-filtered reports via Telegram.

The Problem

Cybersecurity companies rely on n8n for critical automation:

MDR firms: alert triage workflows
GRC companies: compliance evidence collection
Cloud Security: misconfiguration detection
IAM/PAM: access provisioning automation

But your automation infrastructure becomes attack surface:

Leftover credentials from testing (HIGH risk if compromised)
Unprotected webhooks allowing unauthorized workflow triggers
Risky nodes (Execute Command, HTTP Request) with broad permissions
Filesystem access nodes creating data exfiltration paths

Manual audits fail: You check once during setup, then configuration drifts. Unused credentials accumulate. New risky nodes get added. By the time you notice, you're already exposed.

The Solution

Automated weekly security audits with AI-powered false positive filtering:

Schedule trigger: Runs every Sunday at 3 AM
n8n audit: Scans database, credentials, filesystem, instance config, nodes
AI analysis: Claude acts as security analyst, ignores count = 0 findings
Report delivery: Telegram notification with only actionable items

Key Features:

Catches unused credentials before they become liabilities
Detects unprotected webhooks exposing workflows to internet
Identifies risky nodes (Execute Command, SSH, FTP) for review
Filters out noise (count = 0) to prevent alert fatigue
Extracts clean text from AI response (handles structure changes)

Use Cases

For MDR/SOC Automation: Your n8n instance processes customer alerts. An unused credential with SIEM access = backdoor to all customer data. Weekly audits catch this before breach.

For GRC Compliance Automation: You automate SOC 2 evidence collection. An unprotected webhook = anyone can trigger compliance checks and see your control status. Audit detects exposed endpoints.

For Cloud Security Workflows: Your n8n runs CSPM checks across AWS/Azure. A risky Execute Command node with cloud credentials = lateral movement path. Report flags dangerous configurations.

For Offensive Security Infrastructure: Red team uses n8n for attack simulation orchestration. Leftover credentials from old campaigns = OPSEC failure. Automated audit maintains clean operational security.

Business Impact

Time savings: 2 hours/month manual security reviews → 5 min automated Risk reduction: Unused credentials caught in days, not months Compliance: Audit trail for internal automation security posture Scalability: Works across dev/staging/prod n8n instances

Report Categories

Audit covers five critical areas:

Database: Configuration security, connection risks
Credentials: Unused credentials (not in workflows, not in active workflows, not in recent workflows)
Filesystem: Nodes with file system access
Instance: Global security configuration
Nodes: Official risky nodes (Execute Command, HTTP Request, SSH, FTP), SQL injection vectors

Built by Kunsh Tanwar | ETXcyberops | Contact: [email protected]