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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 206

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

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

    190 30

  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 62

  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 85

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    75 19

Repositories

Showing 10 of 81 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 607 Apache-2.0 142 32 14 Updated Sep 16, 2026
  • 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 1,763 GPL-3.0 646 158 (4 issues need help) 81 Updated Sep 16, 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 233 216 11 Updated Sep 16, 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 31 Apache-2.0 18 17 4 Updated Sep 15, 2026
  • osv-schema Public

    Open Source Vulnerability schema.

    ossf/osv-schema's past year of commit activity
    Go 271 Apache-2.0 129 52 13 Updated Sep 15, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac's past year of commit activity
    152 85 44 (5 issues need help) 13 Updated Sep 15, 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-2.0 205 73 (2 issues need help) 17 Updated Sep 15, 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 155 MIT 31 32 (3 issues need help) 8 Updated Sep 15, 2026
  • ossf/ossf-landscape's past year of commit activity
    33 Apache-2.0 29 0 5 Updated Sep 15, 2026
  • community Public
    ossf/community's past year of commit activity
    SCSS 11 CC-BY-4.0 8 3 4 Updated Sep 14, 2026