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CVE-2025-66567

9.3 critical SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.3 · oneloginNVD modified 2026-10-14 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*

References 3