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Sign in as anyone: Bypassing SAML SSO authentication with parser differentials
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.
Execute commands by sending JSON? Learn how unsafe deserialization vulnerabilities work in Ruby projects
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.
Closing vulnerabilities in Decidim, a Ruby-based citizen participation platform
This blog post describes two security vulnerabilities in Decidim, a digital platform for citizen participation. Both vulnerabilities were addressed by the Decidim team with corresponding update releases for the supported versions in May 2023.