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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 207

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

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

    190 31

  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.

    411 63

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

    OpenSSF Working Group on Securing Software Repositories

    134 33

  5. tac tac Public

    Technical Advisory Council

    152 86

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    75 19

Repositories

Showing 10 of 82 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 610 Apache-2.0 143 33 20 Updated Sep 20, 2026
  • 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.

    ossf/wg-best-practices-os-developers's past year of commit activity
    JavaScript 1,067 Apache-2.0 207 74 (2 issues need help) 19 Updated Sep 19, 2026
  • allstar Public

    GitHub App to set and enforce security policies

    ossf/allstar's past year of commit activity
    Go 1,453 Apache-2.0 152 59 (20 issues need help) 10 Updated Sep 19, 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 1,360 MIT 233 217 11 Updated Sep 19, 2026
  • community Public
    ossf/community's past year of commit activity
    SCSS 11 CC-BY-4.0 8 3 2 Updated Sep 19, 2026
  • oss-crs Public

    Cyber Reasoning Systems for Bug-Finding and Patching in Open Source Software

    ossf/oss-crs's past year of commit activity
    Python 159 MIT 32 32 (3 issues need help) 9 Updated Sep 18, 2026
  • model-signing-spec Public

    Model Signing Specification

    ossf/model-signing-spec's past year of commit activity
    Python 28 Apache-2.0 6 6 4 Updated Sep 18, 2026
  • scorecard-webapp Public

    Website and API for OpenSSF Scorecard

    ossf/scorecard-webapp's past year of commit activity
    HTML 33 Apache-2.0 33 36 (7 issues need help) 16 Updated Sep 18, 2026
  • scorecard-action Public

    Official GitHub Action for OpenSSF Scorecard.

    ossf/scorecard-action's past year of commit activity
    Go 418 Apache-2.0 89 34 11 Updated Sep 18, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard's past year of commit activity
    Go 5,697 Apache-2.0 723 388 (11 issues need help) 68 Updated Sep 18, 2026