Nuclei

Nuclei is an open-source, fast, and customizable vulnerability scanner developed by ProjectDiscovery that leverages simple YAML-based templates to detect security vulnerabilities, misconfigurations, and exposures across web applications, APIs, cloud infrastructure, networks, and modern technologies including DNS, HTTP, TCP, SSL, and code protocols. The platform is powered by a global community of security researchers who contribute thousands of continuously updated templates covering CVEs, OWASP vulnerabilities, actively exploited KEV threats, and zero-day vulnerabilities, enabling security engineers, penetration testers, bug bounty hunters, and DevOps teams to automate complex vulnerability detection workflows with near-zero false positives through seamless CI/CD integration and extensive protocol support.