Vulnerability Database

314,453

Total vulnerabilities in the database

CVE-2025-66567

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.

  • Published: Dec 9, 2025
  • Updated: Dec 17, 2025
  • CVE: CVE-2025-66567
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.1
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWEs:

Software From Fixed in
onelogin / ruby-saml - 1.18.0