Critical authentication bypass vulnerabilities (CVE-2025-25291 + CVE-2025-25292) were discovered in ruby-saml up to version 1.17.0. In this blog post, we’ll shed light on how these vulnerabilities that rely on a parser differential were uncovered.
Can an attacker execute arbitrary commands on a remote server just by sending JSON? Yes, if the running code contains unsafe deserialization vulnerabilities. But how is that possible? In this blog post, we’ll describe how unsafe deserialization vulnerabilities work and how you can detect them in Ruby projects.
It’s been a while since we’ve published our Release Radar. You can blame IRL conferences coming back, getting influenza, and being struck down by the weather. But those are just…
Since the beginning, GitHub.com has been a Ruby on Rails monolith. Today, the application is nearly two million lines of code and more than 1,000 engineers collaborate on it daily.…
Each month, we highlight open source projects that have shipped major updates. These projects can include everything from world-changing technology to developer tooling, and weekend hobbies. We cover what the…
How we sped up GitHub.com by moving slow, non-critical code into rack.after_reply.
A deep dive into how GitHub adds support for new languages to CodeQL.
Last month, we challenged you to create a game based on the theme hacking, modding, and/or augmenting. For all those that submitted entries, thank you! A little holiday gift will…
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