Daily Threat Intelligence Processing and Incident Response Automation - n8n Workflow

• SOC Analysts and Security Engineers needing automated daily threat intelligence processing.


• DevOps teams looking to integrate security alerts into their existing monitoring dashboards.


• Users seeking advanced n8n templates that utilize custom code for complex decision-making and risk scoring.


• Security Operations teams who need rapid alerting and logging via Google Sheets and email upon high-severity events.

This advanced n8n workflow is a critical tool for maintaining real-time awareness of security threats. It eliminates manual daily data ingestion by using an n8n trigger to fetch both CVE and IOC feeds. The power of this n8n template lies in its use of custom Code nodes to simulate AI risk evaluation and vulnerability triage, assigning dynamic severity levels. Based on this analysis, the n8n workflow simultaneously updates security dashboards (Google Sheets) and executes an incident response playbook via a response router. This ensures immediate alerting for high-severity events while efficiently routing other necessary actions, providing a robust, hands-off security monitoring solution built on n8n.

1. Daily Activation: The n8n workflow begins daily using the ⏰ Cron – Daily Trigger n8n node.


2. Data Ingestion: The n8n trigger immediately branches to simultaneously execute two HTTP Request n8n nodes: 🌐 Get CVE Feed and 🛡️ Get IOC Feed, collecting vital threat intelligence data.


3. Preprocessing & Combination: The 🧠 Merge Threat Data n8n node combines the two distinct data streams (CVE and IOC). This combined data is then processed further by the 🧠Combine Threat Data custom code n8n node for normalization.


4. AI Risk Assessment: The core logic runs in the 🧠 AI – Risk Evaluation custom n8n node, which calculates a definitive risk score for each item, simulating advanced AI analysis within the n8n workflow. This output is split for parallel processing.


5. Triage and Alerting Path: The 🧠 AI – Triage Vulnerabilities code n8n node determines if the threat meets immediate alert criteria. The 🚨 ALERT – LEV Trigger (If n8n node) checks the severity. If high, it triggers the 📧 Send Alert Email n8n node and logs the incident to Google Sheets immediately.


6. Incident Response Playbook Path: The secondary path sends the risk data to the 🧠 AI – Incident Playbook Selector n8n node, which uses custom logic to select the correct response action (e.g., block, log, escalate).


7. Response Routing: The 🧭 Response Router n8n node (a Switch node) dynamically directs the final action based on the playbook selection. Potential actions include sending a secondary email via the Send Alert Email n8n node, logging to a separate Google Sheets dashboard using the Log to Google Sheet n8n node, or updating an external ticketing/security system using the HTTP Request n8n node.

1. Import: Download the n8n workflow JSON and import it directly into your n8n instance via the Workflows section.


2. Credentials Setup:

1. HTTP Requests: Update the URLs in the 🌐 Get CVE Feed, 🛡️ Get IOC Feed, and the final HTTP Request n8n node to point to your specific threat intelligence endpoints or ticketing system API. If authentication is needed for these feeds, configure the relevant credentials in the n8n node parameters.


2. Custom Code: Review the logic within the five Code n8n node instances (🧠Combine Threat Data, 🧠 AI – Risk Evaluation, etc.). These n8n templates use custom scripting to simulate AI and must be configured with your specific risk matrix and security playbook logic.


3. Activation: Once configured, set the workflow to "Active" to start the daily execution via the n8n trigger.

⏰ Cron – Daily Trigger (n8n trigger): Sets the automation to run once per day, ensuring fresh threat intelligence is retrieved regularly.
🌐 Get CVE Feed & 🛡️ Get IOC Feed (HTTP Request n8n node): Collects raw threat data from external security sources (Common Vulnerabilities and Exposures and Indicators of Compromise).
🧠 Merge Threat Data (Merge n8n node): Combines the two separate data streams (CVE and IOC) into a single dataset for subsequent AI analysis within this n8n workflow.
🧠 AI – Risk Evaluation (Code n8n node): Essential custom scripting used to calculate a derived risk score for each item, simulating advanced AI analysis.
🚨 ALERT – LEV Trigger (If n8n node): Acts as a critical checkpoint, directing the flow to high-priority actions if the severity threshold is met.
📧 Send Alert Email (EmailSend n8n node): Immediately notifies security teams via email when a high-priority threat is identified by the n8n workflow.
Google Sheets (Google Sheets n8n node): Logs all critical, high-level alerts for immediate dashboard visibility and tracking, serving as a reporting component of the n8n templates.
🧭 Response Router (Switch n8n node): Dynamically selects the appropriate incident response action (Email, Logging, or API call) based on the playbook chosen by the preceding AI code n8n node.