CVE-2025-25291
9.8 · CRITICALOverview
CVE-2025-25291 is a critical-severity vulnerability affecting omniauth omniauth_saml. It was published on March 12, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 fix the issue.
Remediation
Check the references section for vendor advisories and patches from omniauth. Update omniauth_saml to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| omniauth | omniauth_saml | >= 0, < 1.10.6 | Affected |
| onelogin | ruby-saml | >= 0, < 1.12.4 | Affected |
References
Frequently Asked Questions
What is CVE-2025-25291?
CVE-2025-25291 is a critical-severity vulnerability affecting omniauth omniauth_saml. It was published on March 12, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-25291?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-25291?
Check the references section for vendor advisories and patches from omniauth. Update omniauth_saml to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-25291?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-25291 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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