Open Source Security

Hosted by Josh Bressers

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Episodes

533

Latest episode

Jun 2026

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About the show

Open Source Security is a media project to help showcase and educate on open source security. Our goal is to give the community a platform educate both developers and users on how open source security works. There's a lot of good work happening that doesn't get attention because there's no marketing department behind it, they don't have a developer relations team posting on LinkedIn every two hours. Let's focus on those people and teams then learn what they do and how they do it. The goal is to hear from the people doing the work, they know what's up, they have a lot to teach us. We just have to listen.

Listen to episodes

60 recent

June 15, 202636 min

Sustaining Open VSX with Mike and Thabang

Josh welcomes Mike Milinkovich and Thabang Mashologu from the Eclipse Foundation to talk about their new managed Open VSX registry. This is the first open source package registry to create a commercial operation for large company users to help fund the registry. We discuss how we got here, what's actually going on, and why this commercial approach is working. Everyone knew this day would come, and it looks like the Eclipse Foundation got this one right. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-06-openvsx-mike-thabang/

June 8, 202635 min

Hacking your CI/CD with François Proulx

Josh welcomes back François Proulx to talk about the absolute madness in the CI/CD universe right now. We also learn about François' new project SmokedMeat which is a tool to help you hack your own CI/CD. When Josh spoke to François a year ago, the world was a very different place than it is today. François has a ton of knowledge about how we got here and what we can do moving forward. Boost Security has a bunch of amazing open source tools François built that can help keep CI/CD systems understood and locked down. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-06-françois-smoked-meat/

June 1, 202631 min

Open source verification with Sal Kimmich

Josh chats with Sal Kimmich about the current state of everything, and what we can expect next. Sal has some incredible insight into what we can expect to see due to the current wave of security bugs and incidents. There are some new features we will need in both our hardware and software to ward off the state of things. Since those features are years away, what we need in the short term is shoring up our SDLC programs. Sal has some really good medical examples and analogies for this one. It's a huge problem but not insurmountable. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-06-verification-sal-kimmich/

May 25, 202637 min

Vulnerability disclosure with Casey Ellis

Josh talks to Casey Ellis about why vulnerability disclosure is so hard, and also so important. Casey is one of the best in this space having been a Bugcrowd founder. There are few people with more experience and insight into how a security vulnerability should be handled, and why the explosion of AI is making all this much harder than it's ever been before. While finding vulnerabilities is easy, reporting them is still a lot of work. Casey is working on helping everyone better understand all this with his disclose.io project. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-05-vulnerability-disclosure-casey-ellis/

May 18, 202636 min

F-Droid the open app store with Hans

Josh talks to Hans-Christoph Steiner about F-Droid, the Free and Open Source Android App Repository. The way F-Droid works looks a lot like a Linux distribution which has some interesting security challenges, but also some great security benefits. Hans walks us through the current state of open app repositories and also what the future currently looks like. There are more open phones than ever before, but there are also more challenges than ever before. Hans breaks it all down in an easy to understand way. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-05-fdroid-hans-steiner/

May 11, 202638 min

Open source is critical infrastructure with Kat Cosgrove

Josh talks to Kat Cosgrove about a how companies should be treating open source more like their critical infrastructure than free stuff. Kat has a ton of knowledge about how the interactions between companies and open source communities can work well, or not work at all. Kat's time on the Kubernetes Release Team. We touch on how a project like Kubernetes is super successful, while another, Ingress NGINX, was not. It's a super insightful discussion with a ton of lessons and advice for everyone. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-05-open-source-infrastructure-kat/

May 4, 202634 min

How to actually test a disaster plan with David Bernstein

Josh and David finish up the disaster recovery and emergency planning trilogy. In this one David tells us how to test the plan he told us how to build in the last episode. There are some great ideas in this one about how to test the process not the people. How to construct the plan, and even some tips to go from a plan to some actual real world testing. It's another episode filled with great and practical advice. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-05-testing-the-plan-david-bernstein/

April 27, 202634 min

Open Source Pledge with Vlad-Stefan Harbuz

Josh has a discussion with Vlad-Stefan Harbuz about the Open Source Pledge as well as his recent FOSDEM talk. The Open Source Pledge is all about trying to build a sustainable universe for open source maintainers. This ties into Vlad's FOSDEM talk which was all about the challenge of just knowing what open source you are using. The importance of trying to make open source sustainable is a really important topic, but it's also a really hard topic. Vlad helps explain all of this as well as some ideas for the solving this in the future. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-04-open-source-pledge-vlad/

April 20, 202639 min

Building a plan for disaster with David Bernstein

Josh welcomes back David Bernstein to talk about creating a disaster recover plan. It's a very timely topic given all the current events. There are more supply chain attacks and compromises than ever before. There are some great resources for this planning, but as David tells us, it's really not that hard to put some plans together. It's easy to over-plan, David gives some great tips on getting started with our planning for an eventual incident. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-04-disaster-planning-david-bernstein/

April 13, 202638 min

Open Source Malware with Paul McCarty

Josh talks to Paul McCarty of Open Source Malware about ... open source malware. Paul explains why there aren't many good open source malware datasets. We discuss why the existing data is lacking for many use cases. We of course touch on AI and the malware in skills problems and challenges. It's a fun discussion with a lot of new and interesting problems we all have to deal with. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2026/2026-04-open-source-malware-paul-mccarty/