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CVE-2025-66567

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

Description (CNA)

The ruby-saml library is for implementing the client side of a SAML authorization. ruby-saml versions up to and including 1.12.4 contain an authentication bypass vulnerability due to an incomplete fix for CVE-2025-25292. ReXML and Nokogiri parse XML differently, generating entirely different document structures from the same input. This allows an attacker to execute a Signature Wrapping attack. This issue is fixed in version 1.18.0.

Affected (CNA)

Vendor / productVersions
SAML-Toolkits / ruby-samlaffected < 1.18.0

CWE

CWE-347

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.