Welcome to the December 2025 edition of the OpenSSF Newsletter! Here’s a roundup of the latest developments, key events, and upcoming opportunities in the Open Source Security community.
🎁 2025 OpenSSF Annual Report
🎁 Free OpenSSF and Linux Foundation Education Courses
☃️ Recap: OpenSSF Community Day Korea 2025
☃️ KubeCon Keynote Recap
☃️ OpenSSF at OSPOlogyLive Europe
☃️ New podcast episodes (#46–47): AI, open source & collaboration (Jay White, Microsoft) and supply chain security in academia (Justin Cappos, NYU)
❄️ Alpha-Omega strengthened SBOM tooling and FreeBSD security
❄️ Gemara site launched
❄️ SecurityCon NA session videos now online
❄️ SLSA v1.2 adds a new Source Track
❄️ OpenBao v2.4.4 released
❄️ Upcoming events: FOSDEM (31 Jan & 1 Feb 2026), Open Source SecurityCon (23 March 2026), KubeCon+CloudNativeCon Europe (23-26, March 2026)
Discover how the open source security community moved forward in 2025. The OpenSSF Annual Report highlights major achievements in education, tooling, vulnerability management, research, and global collaboration with insights from leadership and working groups. It’s a powerful look at how far we’ve come and where we’re headed as we work together to strengthen the security of open source software.
Download the 2025 OpenSSF Annual Report and explore the progress, impact, and vision shaping the future of open source security.
Level up your open source security skills with this practical roundup from Ejiro Oghenekome and Sal Kimmich, CSM, a curated list of free, self-paced Linux Foundation Education and OpenSSF courses built for developers who want to contribute with confidence. From secure coding and threat modeling to OpenSSF Scorecard automation, SBOMs/signatures, and even essential context like ethics, inclusion, and new regulations, this blog post maps out clear learning paths you can start right away, before (or alongside) your next contribution. Read the blog.
OpenSSF Community Day Korea 2025, held on November 4 in Seoul, brought developers and security engineers together for practical sessions on open source and software supply chain security. Talks spanned CI/CD hardening, SBOM-driven tooling, Linux kernel testing, post-quantum cryptography, and AI/ML security, all framed by OpenSSF’s pillars of Education, Policy, Projects, and Community. The event marked a strong start for a growing OpenSSF community in Korea, with public, private, and academic stakeholders aligning around the message that securing open source is shared work. Read the recap blog.
How can a Kubernetes cluster with zero known vulnerabilities still be compromised?
In their KubeCon keynote “Supply Chain Reaction: A Cautionary Tale in K8s Security,” Stacey Potter (Community Manager, OpenSSF) and Adolfo García Veytia (Founder and Engineer, Carabiner Systems) walked through a realistic incident where a compromised compiler image injected a crypto-mining payload long before workloads reached the cluster, bypassing traditional defenses. They showed how tools like SLSA, Sigstore, Kyverno, and Ampel help secure the entire software lifecycle, and why the new Open Source Project Security (OSPS) Baseline with its eight control families and three maturity levels gives projects a practical, stepwise framework to resist invisible supply-chain attacks.
The talk makes a clear case: adopting the OSPS Baseline is now essential for any open source project that wants real, preventative supply-chain security. Learn more.
Short on time but curious about open source security tools? This video series features quick interviews with OpenSSF maintainers, giving you a fast, developer-focused look at the projects, standards, and initiatives they’re building. Hear directly from the people behind the code and discover which tools you might want to try next. Watch the videos here.
Madalin Neag, EU Policy Advisor at OpenSSF participated in OSPOlogyLive Europe, where he presented The Cybersecurity Skills Framework presentation and discussed why securing software requires investing in people and shared security knowledge, not just technology. The session highlighted OpenSSF’s leadership in building practical, role-based security capabilities across engineering teams. The framework provides a clear, actionable map for identifying security skill gaps and prioritizing capability development across the software ecosystem. It also demonstrated how organizations can use a common language for security skills to systematically improve their cybersecurity posture.”
#47 – S2E24 Teaching the Next Generation: Software Supply Chain Security in Academia with Justin Cappos
On the latest episode of What’s in the SOSS, host Yesenia Yser sits down with Justin Cappos, professor at NYU Tandon School of Engineering, to discuss why software supply chain security is still missing from many university curricula and how hands on, open source first education can better prepare students for real world security work.
The conversation explores gaps in traditional computer science education, the importance of teaching open source collaboration, and how initiatives like the Linux Foundation’s Academic Computing Accreditation Program are helping institutions modernize security education.
🎧 Listen to the episode and learn more about the Academic Computing Accreditation Program: https://www.linuxfoundation.org/academic-computing-accreditation
#46 – S2E23 Securing the Future: AI, Open Source, and Collaboration with Jay White (Microsoft)
In this episode of What’s in the SOSS? Jay White from Microsoft’s Azure office of the CTO joins to talk about his path into open source and how it led him to focus on AI, machine learning, and security. He explains how model signing and transparency are becoming core to trustworthy AI, and shares ongoing work in OpenSSF and the Coalition for Secure AI (CoSAI) to build standards for AI supply chain security. The conversation touches on the challenges of cultural representation in AI models, why collaboration across companies and communities is essential, and how practitioners can get involved. Jay also reflects on the importance of community building and continuous learning as AI and open source evolve together.
Connect with the OpenSSF Community at these key events:
Ways to Participate:
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Regards,
The OpenSSF Team