Kubernetes Cluster Security Scanners

Kubescape is a security platform for Kubernetes that provides tools for scanning clusters, configurations, and container images against industry compliance and security benchmarks. It functions as a suite of security utilities, including a compliance auditor, a misconfiguration scanner, and a container vulnerability scanner. The project differentiates itself through automated remediation and active enforcement. It can automatically patch operating system vulnerabilities in images and fix security errors within manifest files. It also utilizes an admission controller to block the deployment of

Kyverno is a Kubernetes policy engine and cloud native governance tool. It functions as a policy-as-code framework that validates, mutates, and generates resources to enforce security and governance standards within a cluster. The project distinguishes itself through a declarative policy model that utilizes native Kubernetes custom resource definitions, allowing policies to be managed as standard cluster objects without custom code. It provides specific security capabilities for container image verification and signature validation to ensure only trusted images are deployed. Its broader capa

Trivy is a comprehensive security scanner designed to identify vulnerabilities and misconfigurations across container images, filesystems, and infrastructure as code files. It functions as a software composition analysis tool and an infrastructure security scanner, providing automated checks for CI/CD pipelines and cloud environments to ensure the integrity of the software supply chain. The tool distinguishes itself through a modular, plugin-based architecture that allows for the independent inspection of diverse targets. It utilizes a declarative policy engine to evaluate configurations agai

Vuls is an agentless vulnerability scanner and CVE intelligence aggregator. It identifies security flaws in operating systems, containers, and network devices without requiring the installation of permanent software agents on target machines. The project distinguishes itself by cross-referencing software versions against multiple vulnerability databases, security advisories, and known exploit catalogs. It utilizes platform-based enumeration and lockfile analysis to detect vulnerabilities in network hardware, programming libraries, and website plugins. The tool covers a broad range of securit

Clair is a container vulnerability scanner that performs static analysis of container images to identify known security vulnerabilities. It functions as an analyzer for OCI and Docker images, indexing their contents to detect security risks and outdated packages without requiring the containers to be running. The tool identifies vulnerabilities by matching indexed container components against security databases to find common vulnerabilities and exposures. This process involves analyzing filesystem layers to track the provenance and versioning of packages across the image hierarchy. The proj

Grype is a command-line security scanner designed to identify known vulnerabilities within container images, filesystems, and software manifests. It functions as a software composition analysis tool that detects security flaws in application components and open-source libraries to support supply chain security. The tool distinguishes itself by reconstructing the final state of container images through layered filesystem inspection and normalizing diverse package formats into a unified dependency graph. It maintains a local cache of security advisories synchronized from multiple upstream sourc

This project is a security compliance tool and configuration auditor designed to evaluate Docker deployments against industry security benchmarks. It functions as a script-based scanner that identifies misconfigurations and vulnerabilities within both the host operating system and container settings. The tool specifically implements the Center for Internet Security standards for Docker to verify host and container configurations. It enables a hardening workflow by comparing system states against these standards to identify security gaps and document compliance status. The audit engine suppor

This project is a unified, cloud-native policy engine designed to decouple authorization and security logic from application codebases. It functions as a centralized authorization service that evaluates structured input data against declarative rules, enabling consistent policy enforcement across microservices, infrastructure, and continuous integration pipelines. The engine utilizes a specialized logic programming language to express complex constraints, which are compiled into an optimized intermediate representation for high-performance evaluation. By supporting both sidecar-based deployme

afrog is an HTTP vulnerability scanner and web vulnerability management system that identifies security flaws and known CVEs using a YAML-based rule engine. It functions as a payload generator and scanner, comparing server responses against detection rules to find unauthorized access points. The project provides a framework for out-of-band security testing, detecting blind vulnerabilities by triggering and verifying external DNS or HTTP callbacks. Beyond web traffic, it includes a protocol fuzzer capable of executing multi-step read and write sequences over raw TCP and SSL sockets to identify

Clair is a container image vulnerability scanner and security analyzer. It performs static analysis of container images by matching package contents against vulnerability databases to identify security risks across different package formats and architectures. The project functions as both an image indexer and a vulnerability database manager. It processes container layers into intermediate representations to enable fast security lookups and synchronizes security metadata from multiple external sources to maintain a local registry. Capability areas include continuous security monitoring, whic