CVE-2025-66568

CriticalMedium RiskPatched

Ruby-SAML Authentication Bypass

CVSS Score

9.1

Severity

Critical

Available Package Updates

RubyGemsruby-samlv1.18.0View on RubyGems →

Fixed in: ruby-saml (RubyGems): 1.18.0

Exploit Intelligence

Weaponized

No

Detectable

Yes

CISA KEV

Not Listed

Risk Level

Medium Risk

Detection Sources

osv

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Published: 12/9/2025