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Ruby-SAML Slam: Security Flaws Unveiled, Update Now or Face the Consequences!
Two severe security flaws in the ruby-saml library could let attackers bypass SAML authentication, causing a potential account takeover. With a CVSS score of 8.8, these vulnerabilities stem from how REXML and Nokogiri parse XML differently, leading to a Signature Wrapping attack. Update to versions 1.12.4 or 1.18.0 to stay secure.
Hot Take:
Ruby’s got a little red-faced! Open-source libraries like ruby-saml are supposed to be the secure superheroes of the digital world, but it seems they’ve misplaced their capes this time around. With vulnerabilities that allow villains to bypass SAML authentication like it’s a theme park turnstile, it’s clear that even the tech industry’s best-intentioned offspring can have a rebellious teenage phase. Time to lock the doors and keep those pesky hackers grounded!
Key Points:
- Two high-severity vulnerabilities discovered in the ruby-saml library (CVE-2025-25291 and CVE-2025-25292).
- Vulnerabilities involve parser differentials in XML parsing between REXML and Nokogiri.
- Potential for Signature Wrapping attacks leading to authentication bypass.
- Issues have been patched in ruby-saml versions 1.12.4 and 1.18.0.
- GitHub Security Lab reported these vulnerabilities and recommended updates to avoid account takeovers.
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