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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 210

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

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

    197 32

  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

    154 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 640 Apache-2.0 172 41 41 Updated Oct 31, 2026
  • package-analysis Public

    Open Source Package Analysis

    ossf/package-analysis's past year of commit activity
    Go 922 Apache-2.0 75 67 (5 issues need help) 18 Updated Oct 30, 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 1,371 MIT 236 219 14 Updated Oct 30, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac's past year of commit activity
    154 89 47 (5 issues need help) 18 Updated Oct 30, 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 1,805 GPL-3.0 701 155 (4 issues need help) 93 Updated Oct 30, 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 1,083 Apache-2.0 209 75 (2 issues need help) 13 Updated Oct 30, 2026
  • security-insights Public

    Machine-readable specification for the attestation of security-relevant data.

    ossf/security-insights's past year of commit activity
    JavaScript 82 23 7 0 Updated Oct 30, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard's past year of commit activity
    Go 5,799 Apache-2.0 759 405 (11 issues need help) 83 Updated Oct 30, 2026
  • ossf/security-baseline's past year of commit activity
    Go 169 Apache-2.0 44 39 (4 issues need help) 2 Updated Oct 30, 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 16 2 Updated Oct 30, 2026