Improper Certificate Validation Affecting omniauth-saml package, versions <2.2.4
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Test your applications- Snyk IDSNYK-RUBY-OMNIAUTHSAML-18017733
- published19 Jul 2026
- disclosed19 Jul 2026
- creditahacker1
Introduced: 19 Jul 2026
New CVE NOT AVAILABLE CWE-295 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade omniauth-saml to version 2.2.4 or higher.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation due to insecure default behavior in the idp_cert_fingerprint_validator. An attacker can bypass certificate validation by providing any certificate fingerprint, which will be accepted as valid.