Open-source alternatives to Scorecard

Cartography is a graph-based infrastructure visualization and security analysis framework. It ingests data from diverse cloud, identity, and software-as-a-service providers to model complex relationships between resources, users, and security findings within a centralized graph database. By mapping these interdependencies, the platform enables organizations to gain visibility into their environment and identify potential security risks through graph traversal queries. The platform distinguishes itself through its ontology-based normalization and cross-platform entity correlation, which map he

Sn1per is a vulnerability management platform and penetration testing orchestrator designed to automate reconnaissance, vulnerability scanning, and exploit verification. It functions as a dockerized security toolkit that coordinates multiple tools into a unified automated pipeline to identify security flaws across network and web assets. The platform features an attack surface manager for discovering internet-facing assets through OSINT, DNS enumeration, and certificate transparency. It distinguishes itself with an AI-powered security analyzer that uses large language models to summarize scan

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

gosec is a static analysis security tool designed to scan Go source code for vulnerabilities and common coding flaws. It functions as a security analyzer that inspects the abstract syntax tree to identify insecure function calls, API usage, and potential security risks. The tool distinguishes itself by mapping detected vulnerabilities to Common Weakness Enumeration identifiers for standardized reporting and integrating with external AI models to suggest code fixes for identified issues. Its capabilities cover the detection of injection vulnerabilities, hardcoded credentials, weak cryptograph

This project is a governance, risk, and compliance platform designed to centralize security governance, risk management, and regulatory compliance activities. It functions as a cybersecurity framework manager and a quantitative risk management system, allowing organizations to track their security posture through a centralized hub. The platform is distinguished by its ability to decouple regulatory requirements from technical security controls, enabling users to map a single implementation across multiple global frameworks to reduce audit duplication. It further differentiates itself through

Nettacker is an automated penetration testing framework designed to orchestrate reconnaissance, port scanning, and vulnerability detection. It functions as a network reconnaissance tool and vulnerability scanner that identifies open ports, fingerprints services, and checks systems against databases of known security flaws. The framework distinguishes itself by combining a web application crawler for discovering hidden paths via fuzzing with a vulnerability management system that persists scan results in a database to track historical assessments. It also includes specialized capabilities for

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

A static analysis tool for securing Go code

GitHub App to set and enforce security policies

detect-secrets is a modular secret scanning tool that identifies hard-coded credentials and sensitive information in source code. It combines multiple detection strategies—regular expression pattern matching, Shannon entropy calculation, and a machine learning classifier—to find potential secrets, and uses a baseline-driven delta analysis to distinguish newly introduced secrets from pre-existing ones, reducing noise from legacy credentials. The tool integrates directly into development workflows through a git pre-commit hook that blocks commits introducing unbaselined secrets, and can be inco

weggli is a fast and robust semantic search tool for C and C++ codebases. It is designed to help security researchers identify interesting functionality in large codebases.

Tsunami Security Scanner is a network vulnerability scanner and security auditor designed to identify high-severity flaws across network assets. It functions as an asynchronous security probe engine that utilizes automated probes and specialized detection logic to find critical weaknesses and prioritize remediation efforts. The project is distinguished by a plugin-based scanning engine, which uses a modular architecture of interchangeable detection plugins to identify vulnerabilities. This extensibility allows for the development and integration of custom security plugins to expand the variet

Checkov is a static analysis tool and security scanner designed to identify misconfigurations in infrastructure as code, container images, and Kubernetes configurations. It functions as a cloud security posture tool, an SCA vulnerability scanner, and a secret scanning utility to prevent security breaches and version control leaks. The project distinguishes itself through deep graph analysis and variable resolution, allowing it to map relationships between interconnected resources and evaluate the final state of infrastructure attributes. It provides extensibility for defining custom security

Dependency-Track is a software composition analysis tool and vulnerability management system designed to track dependencies and supply chain risk. It functions as a platform for ingesting and analyzing CycloneDX software bills of materials to identify known vulnerabilities and license compliance issues within third-party software components. The system distinguishes itself by mirroring external vulnerability databases locally to enable fast offline analysis and using VEX documents to differentiate between technical vulnerabilities and actual contextual risks. It also integrates with identity

This project provides a comprehensive guide for securing the software supply chain within Node.js and npm environments. It focuses on hardening the entire lifecycle of third-party dependencies and package publishing processes to protect applications from malicious code injection and unauthorized registry modifications. The guide distinguishes itself by emphasizing identity-based authentication and cryptographic provenance to verify the origin of distributed artifacts. It advocates for strict governance policies, such as enforcing minimum release ages for dependencies and disabling automatic l

Renovate is a GitOps-driven dependency management engine designed to automate the maintenance of software projects. It functions as an automated update tool that scans repository files to identify outdated dependencies, fetches the latest compatible versions from external sources, and generates pull requests to apply those updates. By integrating directly with code hosting platforms, it synchronizes project dependencies through declarative configuration files, ensuring that software components remain current and secure. The project distinguishes itself through its platform-agnostic architectu

This project is a comprehensive, curated directory of static analysis, linting, and security scanning utilities. It serves as a central resource for developers to discover, compare, and select tools based on specific programming languages, licensing models, and integration requirements. The directory distinguishes itself by providing deep metadata for each listed utility, including community-driven popularity rankings, maintenance status, and deployment methods. By aggregating these tools into a single searchable index, it enables teams to identify solutions for enforcing coding standards, ma

SecurityAdvisories is a software composition analysis tool and PHP security advisory database used to audit project dependencies against known security flaws and CVEs. It functions as a vulnerability scanner for PHP projects to identify and manage risky third-party libraries. The project implements a system for detecting and blocking vulnerable dependencies during the software development lifecycle. It prevents the installation of software packages with known security flaws by maintaining an exclusion list of forbidden versions. The tool integrates with the PHP package manager to intercept d

Retire.js is a JavaScript vulnerability scanner and dependency security analyzer. It identifies outdated or insecure JavaScript libraries with known security flaws within web applications and local projects. The tool functions as a web security auditing utility that can be used during penetration testing to detect vulnerable scripts on live websites. It supports the generation of Software Bills of Materials using the CycloneDX format to document project dependencies. The system utilizes signature-based library detection and pattern-matching to map identified versions against a JSON-based sec

The CNCF Curriculum is an open-source repository that organizes exam domains and learning paths for CNCF certification courses covering Kubernetes and cloud-native technologies. It structures certification content into weighted domains that reflect exam question distribution, providing a structured study guide for candidates preparing for CNCF certifications. The curriculum is organized around multiple cloud-native domains including networking, security, GitOps, platform engineering, and certification preparation. It teaches cloud-native concepts through the lens of building and operating int

Flox is a Nix environment manager designed to create, share, and maintain reproducible software stacks. It uses declarative manifests to isolate project dependencies and toolchains, ensuring identical runtimes across different machines and operating systems. The platform distinguishes itself by enabling the deployment of imageless workloads to Kubernetes, allowing software to run in pods without traditional container images. It can also synthesize OCI-compliant container images and distroless artifacts directly from declarative environment definitions. The project covers broad capability are

OSS-Fuzz is a distributed, containerized platform for continuous fuzzing and memory safety analysis. It functions as a bug hunting infrastructure that identifies security vulnerabilities and stability bugs through automated, coverage-guided fuzz testing across a scalable cluster of containers. The system provides a continuous security testing pipeline that manages the entire lifecycle of vulnerability discovery, from bootstrapping project templates and compiling targets to executing long-running batch tests. It specifically focuses on memory safety, utilizing sanitizers to detect buffer overf

This project is a web application security standard and vulnerability framework. It provides a comprehensive list of the most critical security risks facing web applications, paired with technical guidance and a structured methodology for identifying and mitigating these flaws. The framework functions as a secure coding guide and a risk assessment methodology, offering a standardized approach to prioritizing vulnerabilities based on their potential impact and likelihood of exploitation. It defines architectural patterns and technical recommendations to help developers implement defense in dep

itpol is a framework for cryptographic key management, digital signature policies, and security hardening. It provides an IT policy template library and infrastructure access frameworks to establish organizational security guidelines and governance. The project focuses on cryptographic identity management through the use of PGP and SSH keys, alongside a security hardening guide for workstations. It defines standards for software supply chain security, specifically regarding the signing of code commits and software releases to ensure provenance. The system covers a broad range of security cap

Syft is a software bill of materials generator, container image scanner, and software dependency catalog. It analyzes container images and filesystems to produce comprehensive inventories of installed packages and dependencies in standard formats. Additionally, it serves as a software attestation tool and an SBOM format converter. The project distinguishes itself through the ability to create cryptographically signed attestations for software inventories to ensure provenance and integrity. It also provides the capability to transform software bills of materials between different industry sche

SkillSpector is a security scanner designed to detect vulnerabilities and malicious patterns in AI agent plugins and extensions before they are installed. It functions as a runtime guardrail that calculates numeric risk scores and assigns severity labels to provide installation recommendations or block risky external extensions. The project distinguishes itself by using language models to perform semantic code analysis, evaluating code intent and context to reduce false positives. It also employs fingerprint-based issue suppression to track and ignore previously accepted risks across repeated

This project is a GitHub Action that automates the building and pushing of Docker container images to OCI registries. It functions as a multi-platform container builder and publisher using the Buildx engine to create images compatible with multiple hardware architectures. The tool distinguishes itself through software supply chain security features, including the generation of software bills of materials and provenance attestations to verify image integrity. It optimizes construction speed via remote cache management and supports secure secret injection to prevent sensitive data from persisti