CVE-2017-11430: Omniauth SAML

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

OmniAuth OmnitAuth-SAML 1.9.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

Affected products

• Omniauth Omniauth SAML: up to and including 1.9.0

Published 2019-04-17. Last modified 2026-06-17.