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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 999 187

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

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

    155 23

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

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

    390 48

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

    OpenSSF Working Group on Securing Software Repositories

    128 29

  5. tac tac Public

    Technical Advisory Council

    136 76

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    75 18

Repositories

Showing 10 of 77 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 470 Apache-2.0 80 19 10 Updated Mar 19, 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 1,642 GPL-3.0 602 145 (1 issue needs help) 45 Updated Mar 19, 2026
  • scorecard-action Public

    Official GitHub Action for OpenSSF Scorecard.

    ossf/scorecard-action’s past year of commit activity
    Go 366 Apache-2.0 82 28 12 Updated Mar 19, 2026
  • scorecard-webapp Public

    Website and API for OpenSSF Scorecard

    ossf/scorecard-webapp’s past year of commit activity
    Go 28 Apache-2.0 31 31 (7 issues need help) 23 Updated Mar 19, 2026
  • allstar Public

    GitHub App to set and enforce security policies

    ossf/allstar’s past year of commit activity
    Go 1,395 Apache-2.0 144 61 (20 issues need help) 2 Updated Mar 19, 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 21 Apache-2.0 12 22 5 Updated Mar 19, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard’s past year of commit activity
    Go 5,314 Apache-2.0 612 362 (11 issues need help) 27 Updated Mar 19, 2026
  • secure-sw-dev-fundamentals Public

    Secure Software Development Fundamentals courses (from the OpenSSF Best Practices WG)

    ossf/secure-sw-dev-fundamentals’s past year of commit activity
    CSS 200 CC-BY-4.0 51 34 4 Updated Mar 18, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac’s past year of commit activity
    136 76 39 (6 issues need help) 20 Updated Mar 18, 2026
  • osv-schema Public

    Open Source Vulnerability schema.

    ossf/osv-schema’s past year of commit activity
    Go 240 Apache-2.0 114 50 8 Updated Mar 17, 2026