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GHSA-9V8J-X534-2FX3 Ruby-saml has a SAML authentication bypass due to namespace handling (parser differential)

🗓️ 08 Dec 2025 21:30:56Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Ruby-saml up to 1.12.4 has authentication bypass via signature wrapping from parser differences; 1.18.0 is unaffected.

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04 Feb 2026 02:32Current
7.2High risk
Vulners AI Score7.2
CVSS 49.3
EPSS0.0039
4