CVE-2025-25291 Scanner
CVE-2025-25291 Scanner - Authentication Bypass vulnerability in GitLab
Used 3.2k times · 4.2k assets checked · domain, subdomain, ipv4
CVE
CVE-2025-25291
9.3
CVSScritical
Exploitable remotely over the internet · no authentication required.
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.
Attack Vector
Network
Privileges Req.
None
User Interaction
None
ruby-saml
Updated Sep 28, 2026View on NVD →
S4E scanner
CVE history: ruby-saml
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