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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 980 187

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

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

    141 22

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

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

    381 49

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

    OpenSSF Working Group on Securing Software Repositories

    125 29

  5. tac tac Public

    Technical Advisory Council

    133 75

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    74 18

Repositories

Showing 10 of 75 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 436 Apache-2.0 72 14 4 Updated Jan 20, 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 980 Apache-2.0 187 68 (2 issues need help) 10 Updated Jan 20, 2026
  • sig-basejump Public
    ossf/sig-basejump’s past year of commit activity
    0 Apache-2.0 0 0 0 Updated Jan 20, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac’s past year of commit activity
    133 75 39 (6 issues need help) 11 Updated Jan 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) 15 Updated Jan 19, 2026
  • allstar Public

    GitHub App to set and enforce security policies

    ossf/allstar’s past year of commit activity
    Go 1,384 Apache-2.0 145 61 (20 issues need help) 2 Updated Jan 19, 2026
  • scorecard Public

    OpenSSF Scorecard - Security health metrics for Open Source

    ossf/scorecard’s past year of commit activity
    Go 5,236 Apache-2.0 600 359 (11 issues need help) 21 Updated Jan 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 1,613 GPL-3.0 597 157 (1 issue needs help) 66 Updated Jan 19, 2026
  • fuzz-introspector Public

    Fuzz Introspector -- introspect, extend and optimise fuzzers

    ossf/fuzz-introspector’s past year of commit activity
    Python 444 Apache-2.0 78 107 (1 issue needs help) 6 Updated Jan 16, 2026
  • wg-supply-chain-integrity Public

    Our objective is to enable open source maintainers, contributors and end-users to understand and make decisions on the provenance of the code they maintain, produce and use.

    ossf/wg-supply-chain-integrity’s past year of commit activity
    195 Apache-2.0 36 10 1 Updated Jan 15, 2026