Nuclei is a modular security scanning framework designed for automated vulnerability detection and infrastructure reconnaissance. It functions as a template-driven engine that executes security checks across diverse network protocols, allowing users to define custom detection logic to identify vulnerabilities, misconfigurations, and exposed assets.
The platform distinguishes itself through its highly extensible architecture, which supports distributed scanning, headless browser automation for dynamic web content, and out-of-band interaction monitoring to detect blind vulnerabilities. It integrates advanced reconnaissance capabilities, including cloud infrastructure assessment, subdomain discovery, and technology fingerprinting, into a unified workflow that can be orchestrated via a command-line interface or programmatic API.
Beyond core scanning, the project provides a comprehensive suite of tools for external attack surface management, including asset inventorying, visual evidence capture, and automated ticketing integration. It supports collaborative security operations through team workspaces, centralized template management, and real-time alerting, ensuring that vulnerability findings can be tracked, verified, and remediated within a single environment.
The platform is distributed as a command-line utility and supports containerized execution, enabling integration into existing CI/CD pipelines and automated security workflows.
