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@ossf

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.
OpenSSF Logo

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 operations@openssf.org.

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 1.1k 210

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

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

    200 32

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

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

    413 63

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

    OpenSSF Working Group on Securing Software Repositories

    135 35

  5. tac tac Public

    Technical Advisory Council

    154 89

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    75 20

Repositories

Showing 10 of 85 repositories
  • 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 641 Apache-2.0 176 42 40 Updated Nov 3, 2026
  • scorecard-visualizer Public

    Tool for visualizing the Open SSF Scorecard Api data in a human friendly way

    ossf/scorecard-visualizer's past year of commit activity
    TypeScript 21 Apache-2.0 8 1 25 Updated Nov 3, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard's past year of commit activity
    Go 5,806 Apache-2.0 761 411 (11 issues need help) 87 Updated Nov 3, 2026
  • best-practices-badge Public

    🏆Open Source Security Foundation (OpenSSF) Best Practices Badge (formerly Core Infrastructure Initiative (CII) Best Practices Badge)

    ossf/best-practices-badge's past year of commit activity
    Ruby 1,373 MIT 238 222 21 Updated Nov 3, 2026
  • osv-schema Public

    Open Source Vulnerability schema.

    ossf/osv-schema's past year of commit activity
    Go 273 Apache-2.0 135 53 11 Updated Nov 3, 2026
  • pvtr-github-repo-scanner Public

    Privateer plugin for scanning the security hygiene of a GitHub repository.

    ossf/pvtr-github-repo-scanner's past year of commit activity
    Go 33 Apache-2.0 23 16 3 Updated Nov 3, 2026
  • si-tooling Public
    ossf/si-tooling's past year of commit activity
    Go 9 Apache-2.0 5 0 1 Updated Nov 2, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac's past year of commit activity
    154 89 47 (5 issues need help) 15 Updated Nov 2, 2026
  • 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 144 Apache-2.0 72 0 1 Updated Nov 2, 2026
  • ossf/python-secure-coding-guide's past year of commit activity
    Python 0 0 22 0 Updated Nov 2, 2026