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CVE-2025-66567 ruby-saml has a SAML authentication bypass due to namespace handling (parser differential)

🗓️ 09 Dec 2025 01:55:06Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

CVE-2025-66567 in ruby-saml enables SAML bypass via namespace handling; fixed in 1.18.0.

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10 Apr 2026 05:34Current
9.4High risk
Vulners AI Score9.4
CVSS 49.3
EPSS0.0005
1