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Open Source Security Foundation (OpenSSF)

OpenSSF is a community of software developers and security engineers who are working together to secure open source software for the greater public good.
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OpenSSF is committed to working both upstream and with existing communities to advance open source security for all.

We foster collaboration, establish best practices, and develop innovative solutions to secure the development, maintenance, and consumption of open source software. OpenSSF is part of the nonprofit Linux Foundation.

Working Groups:

For any questions, concerns, reports, etc., please email [email protected].

Get Involved

Membership

We encourage all individual contributors to work with their employers to become members. We aim to grow an active, healthy community of contributors, reviewers, and code owners. Learn more about the requirements and responsibilities of membership in our Membership page or see current members.

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  1. wg-best-practices-os-developers wg-best-practices-os-developers Public

    The Best Practices for OSS Developers working group is dedicated to raising awareness and education of secure code best practices for open source developers.

    JavaScript 960 185

  2. ai-ml-security ai-ml-security Public

    Working Group on Artificial Intelligence and Machine Learning (AI/ML) Security

    127 22

  3. wg-securing-critical-projects wg-securing-critical-projects Public

    Helping allocate resources to secure the critical open source projects we all depend on.

    378 48

  4. wg-securing-software-repos wg-securing-software-repos Public

    OpenSSF Working Group on Securing Software Repositories

    123 28

  5. tac tac Public

    Technical Advisory Council

    133 74

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    73 18

Repositories

Showing 10 of 75 repositories
  • ossf/ossf-landscape’s past year of commit activity
    30 Apache-2.0 27 0 0 Updated Dec 18, 2025
  • cve-bin-tool Public

    The CVE Binary Tool helps you determine if your system includes known vulnerabilities. You can scan binaries for over 350 common, vulnerable components (openssl, libpng, libxml2, expat and others), or if you know the components used, you can get a list of known vulnerabilities associated with an SBOM or a list of components and versions.

    ossf/cve-bin-tool’s past year of commit activity
    Python 1,585 GPL-3.0 583 153 (1 issue needs help) 58 Updated Dec 18, 2025
  • malicious-packages Public

    A repository of reports of malicious packages identified in Open Source package repositories, consumable via the Open Source Vulnerability (OSV) format.

    ossf/malicious-packages’s past year of commit activity
    Go 426 Apache-2.0 70 14 5 Updated Dec 18, 2025
  • wg-securing-software-repos Public

    OpenSSF Working Group on Securing Software Repositories

    ossf/wg-securing-software-repos’s past year of commit activity
    123 28 11 4 Updated Dec 18, 2025
  • gemara Public

    Minimizing rework for governance activities.

    ossf/gemara’s past year of commit activity
    Go 34 Apache-2.0 17 30 (1 issue needs help) 3 Updated Dec 18, 2025
  • osv-schema Public

    Open Source Vulnerability schema.

    ossf/osv-schema’s past year of commit activity
    Go 217 Apache-2.0 109 35 12 Updated Dec 17, 2025
  • secure-sw-dev-fundamentals Public

    Secure Software Development Fundamentals courses (from the OpenSSF Best Practices WG)

    ossf/secure-sw-dev-fundamentals’s past year of commit activity
    CSS 198 CC-BY-4.0 52 34 4 Updated Dec 17, 2025
  • ossf/security-baseline’s past year of commit activity
    Go 123 Apache-2.0 33 55 (5 issues need help) 9 Updated Dec 17, 2025
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard’s past year of commit activity
    Go 5,193 Apache-2.0 593 360 (11 issues need help) 12 Updated Dec 17, 2025
  • alpha-omega Public

    Our mission is to catalyze sustainable improvements to critical open source software projects and ecosystems.

    ossf/alpha-omega’s past year of commit activity
    Open Policy Agent 110 Apache-2.0 61 0 0 Updated Dec 16, 2025