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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 208

  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 34

  5. tac tac Public

    Technical Advisory Council

    152 86

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    75 20

Repositories

Showing 10 of 82 repositories
  • 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 1,767 GPL-3.0 649 158 (4 issues need help) 84 Updated Sep 28, 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 1,362 MIT 234 217 15 Updated Sep 28, 2026
  • glossary Public

    A reference for common terms when talking about OpenSSF and open source software security.

    ossf/glossary's past year of commit activity
    JavaScript 6 Apache-2.0 7 3 7 Updated Sep 28, 2026
  • 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 617 Apache-2.0 146 34 22 Updated Sep 28, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard's past year of commit activity
    Go 5,715 Apache-2.0 729 388 (11 issues need help) 64 Updated Sep 28, 2026
  • community Public
    ossf/community's past year of commit activity
    SCSS 11 CC-BY-4.0 10 2 3 Updated Sep 28, 2026
  • scorecard-infra Public

    OpenSSF Scorecard infrastructure

    ossf/scorecard-infra's past year of commit activity
    Go 2 Apache-2.0 2 13 8 Updated Sep 28, 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) 19 Updated Sep 28, 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 1,068 Apache-2.0 208 74 (2 issues need help) 20 Updated Sep 26, 2026
  • package-analysis Public

    Open Source Package Analysis

    ossf/package-analysis's past year of commit activity
    Go 915 Apache-2.0 74 66 (5 issues need help) 21 Updated Sep 25, 2026