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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

    196 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.

    413 63

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

    OpenSSF Working Group on Securing Software Repositories

    134 35

  5. tac tac Public

    Technical Advisory Council

    153 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 634 Apache-2.0 167 40 32 Updated Oct 27, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard's past year of commit activity
    Go 5,796 Apache-2.0 754 404 (11 issues need help) 74 Updated Oct 27, 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 1,372 MIT 236 218 13 Updated Oct 27, 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 174 MIT 38 32 (3 issues need help) 14 Updated Oct 27, 2026
  • package-analysis Public

    Open Source Package Analysis

    ossf/package-analysis's past year of commit activity
    Go 921 Apache-2.0 75 67 (5 issues need help) 14 Updated Oct 27, 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 32 Apache-2.0 22 17 2 Updated Oct 26, 2026
  • si-tooling Public
    ossf/si-tooling's past year of commit activity
    Go 9 Apache-2.0 5 0 1 Updated Oct 26, 2026
  • community Public
    ossf/community's past year of commit activity
    SCSS 11 CC-BY-4.0 11 2 4 Updated Oct 26, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac's past year of commit activity
    153 89 48 (5 issues need help) 15 Updated Oct 26, 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 1,799 GPL-3.0 698 154 (4 issues need help) 92 Updated Oct 26, 2026