Top 5 Open Source SOAR Tools: What It Means for n8n Users

In today’s rapidlyevolving threat landscape, security teams are constantly seeking ways to streamline incident response, reduce dwell time, and improve overall operational efficiency. Enter SOAR—Security Orchestration, Automation, and Response—a framework that unifies detection, triage, and remediation into a single, cohesive workflow. While many organizations initially adopt commercial platforms, the rise of robust open source options has democratized access to powerful automation capabilities. For users of n8n, the no‑code workflow engine, integrating SOAR tools can unlock new levels of agility, enabling you to connect security alerts, ticketing systems, and custom scripts without writing extensive code. This article explores the top five open source SOAR solutions, examines how they complement workflow automation, and offers practical advice for deploying them alongside n8n to build resilient, scalable security operations.

1. Understanding SOAR: The Strategic Backbone of Modern Security Operations

SOAR is more than a buzzword; it represents a strategic shift from siloed, manual incident handling to an integrated, automated approach. At its core, SOAR combines three key functions:

Security Orchestration: Coordinating disparate security tools and data sources into a unified response.
Automation: Executing repetitive tasks—such as ticket creation, log enrichment, or firewall rule updates—without human intervention.
Response: Applying predefined playbooks to contain threats, remediate vulnerabilities, or notify stakeholders.

Why does this matter for n8n users? n8n’s visual workflow builder excels at stitching together APIs, databases, and custom functions. By layering a SOAR engine on top, you can automatically trigger n8n workflows when a security alert arrives, enrich the context, and execute remediation steps—all within a single, auditable process. The result is faster mean time to respond (MTTR) and reduced risk of human error.

2. Open Source SOAR Tool #1: TheHive Project

TheHive is a lightweight, collaborative incident response platform designed for security analysts. It focuses on case management, enrichment, and case sharing, making it an ideal companion for teams that already use ticketing systems like Jira or ServiceNow.

Key Features

Case Management: Centralized dashboard for tracking investigations, assigning tasks, and logging notes.
Playbook Integration: Supports custom scripts and external tools via REST APIs.
Community Enrichment: Built‑in modules for VirusTotal, Passive DNS, and threat intelligence feeds.

Practical Example: Imagine a phishing email detected by your email gateway. Using TheHive’s API, you can automatically create a case, attach the email headers, and trigger an n8n workflow that checks the sender’s domain reputation via an external API. The workflow can then update the case with the enrichment results, providing analysts with a single, contextual view.

Actionable Advice: Start by deploying TheHive in a Docker container, configure its API key, and connect it to n8n via an HTTP request node. This integration allows you to treat every new case as a trigger for automated enrichment, dramatically reducing manual overhead.

3. Open Source SOAR Tool #2: Wazuh

Wazuh is an open source security platform that provides real‑time threat detection, integrity monitoring, and compliance checking. While primarily known as a host‑based intrusion detection system (HIDS), its modular architecture enables SOAR capabilities through custom scripting and rule execution.

Why Wazuh Stands Out

Multi‑Cloud Support: Agents for Linux, Windows, macOS, and containerized environments.
Rule‑Based Automation: Execute commands or scripts when specific alerts fire.
Elastic Stack Integration: Native compatibility with Elasticsearch, Logstash, and Kibana for visual analytics.

Practical Example: Suppose a file integrity alert triggers on a critical server. Wazuh can invoke a shell script that runs an n8n workflow to quarantine the affected file, generate a forensic snapshot, and notify the security team via Slack. The entire chain—from detection to remediation—can be orchestrated without manual intervention.

Actionable Advice: Leverage Wazuh’s “exec” module to call n8n’s REST API whenever a rule matches. This approach enables you to embed security checks directly into your existing monitoring pipelines, ensuring that every alert is met with a pre‑defined response.

4. Open Source SOAR Tool #3: SecurityTrails API Suite

SecurityTrails offers a suite of APIs that aggregate DNS, WHOIS, IP, and host data, providing instant context for any security alert. While not a full‑featured SOAR platform on its own, its rich data sources make it a powerful enrichment engine that can be embedded into any automation workflow.

Notable Capabilities

Real‑Time DNS Lookups: Resolve domains to IPs and retrieve historical records.
Threat Intelligence Enrichment: Access reputation scores, passive DNS, and SSL certificate data.
Scalable REST API: Easy integration with workflow engines like n8n.

Practical Example: When a new IP address appears in a firewall log, an n8n workflow can call the SecurityTrails API to fetch the IP’s reputation, recent activity, and associated domains. The enriched data can then feed into a decision tree that either escalates the alert or automatically blocks the IP via a firewall rule.

Actionable Advice: Cache API responses in a lightweight database (e.g., SQLite) to avoid rate‑limit issues. Use the cached data to drive conditional branches in your n8n workflows, ensuring that each step has access to up‑to‑date threat intelligence without repeated external calls.

5. Open Source SOAR Tool #4: Cortex XSOAR Community Edition

Cortex XSOAR (formerly Demisto) provides a community edition that packs a full suite of playbooks, automation scripts, and a visual editor. Although the enterprise version includes advanced analytics, the community edition remains a potent tool for teams seeking a comprehensive playbook library.

Highlights

Extensive Playbook Library: Over 200 pre‑built automations for common use cases.
Visual Playbook Designer: Drag‑and‑drop interface similar to n8n, facilitating low‑code development.
Open-source Scripting: Python and JavaScript support for custom logic.

Practical Example: Deploy a playbook that triggers when a credential dumping detection fires. The playbook can automatically isolate the affected endpoint, run an n8n workflow to collect memory dump artifacts, and create a ticket in your ticketing system. All steps are auditable and repeatable.

Actionable Advice: Import the community edition’s JSON playbook definitions into n8n as separate workflows. This migration allows you to maintain a single source of truth for automation logic while leveraging n8n’s UI for rapid iteration and testing.

6. Open Source SOAR Tool #5: Splunk SOAR (formerly Phantom) Community Edition

Splunk’s SOAR offering, now known as Splunk SOAR, includes a community edition that provides automation capabilities centered around Splunk’s powerful search language (SPL). Although the platform is tightly integrated with Splunk’s ecosystem, it can be used independently to orchestrate actions across a wide range of security tools.

Core Strengths

Search‑Driven Automation: Use SPL queries to filter and trigger actions.
Connector Marketplace: Hundreds of pre‑built integrations for third‑party services.
Scalable Orchestration: Handles high‑volume alert streams with low latency.

Practical Example: When a Splunk search identifies a suspicious PowerShell command, the SOAR engine can launch an n8n workflow that disables the offending process, gathers relevant logs, and notifies the incident response team. The entire chain is driven by a single search event, minimizing response time.

Actionable Advice: Configure Splunk SOAR to forward alert payloads to an n8n webhook node. This pattern enables you to keep Splunk’s detection engine while using n8n’s visual editor to design complex remediation steps without writing code.

Putting It All Together: Building a Cohesive Automation Pipeline

Now that we’ve examined five leading open source SOAR solutions, the next step is to design a workflow architecture that leverages their strengths while complementing n8n’s low‑code environment. Below is a step‑by‑step blueprint you can adapt:

Step 1: Centralize Alert Ingestion – Deploy a SIEM or log collector (e.g., Wazuh) that forwards alerts to a message queue.
Step 2: Enrich with External Data – Use SecurityTrails or TheHive’s enrichment modules to add context (IP reputation, domain history).
Step 3: Trigger Automated Playbooks – Configure the SOAR engine to start a n8n workflow when specific enrichment thresholds are met.
Step 4: Execute Remediation – Within n8n, chain together API calls to firewalls, ticketing systems, or endpoint management tools.
Step 5: Close the Loop – Update the original ticket or case with remediation outcomes, and feed the data back into the SIEM for future learning.

By following this pattern, you create a reusable, auditable pipeline that can be extended as new threats emerge. Moreover, because each component is open source, you retain full control over data residency, customization, and cost.

Conclusion

Open source SOAR tools are reshaping how security teams approach incident response, offering the flexibility, transparency, and cost‑effectiveness that proprietary solutions often lack. Whether you choose TheHive for collaborative case management, Wazuh for host‑level monitoring, SecurityTrails for rapid enrichment, Cortex XSOAR Community for playbook automation, or Splunk SOAR for search‑driven orchestration, each platform can be seamlessly integrated with n8n to build powerful, low‑code workflows. The key is to start small—pick one enrichment source, connect it to an n8n workflow, and iterate based on real‑world feedback. As your automation maturity grows, you can layer additional tools and playbooks to create a resilient security operations stack. For organizations that prefer a managed hosting environment to simplify deployment, exploring a dedicated service like n8nautomation.cloud can provide a reliable, production‑grade n8n instance, allowing you to focus on building smarter security automations rather than managing infrastructure.