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CVE-2025-25292— Ruby SAML vulnerable to SAML authentication bypass due to namespace handling (parser differential)

EPSS 4.71% · P89
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I. Basic Information for CVE-2025-25292

Vulnerability Information
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Vulnerability Title
Ruby SAML vulnerable to SAML authentication bypass due to namespace handling (parser differential)
Source: NVD (National Vulnerability Database)
Vulnerability 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 contain a patch for the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
OneLogin ruby-saml 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Onelogin OneLogin ruby-saml是美国Onelogin公司的一款基于Ruby的、用于单点登录（SSO）服务的SAML（安全断言标记语言）库。 OneLogin ruby-saml 1.12.4和1.18.0之前版本存在安全漏洞，该漏洞源于解析器差异，可能导致认证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
SAML-Toolkitsruby-saml < 1.12.4 -

II. Public POCs for CVE-2025-25292

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III. Intelligence Information for CVE-2025-25292

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Same Patch Batch · SAML-Toolkits · 2025-03-12 · 3 CVEs total

CVE-2025-25293ruby-saml vulnerable to Remote Denial of Service (DoS) with compressed SAML responses
CVE-2025-25291ruby-saml vulnerable to SAML authentication bypass due to DOCTYPE handling (parser differe

IV. Related Vulnerabilities

Same product: ruby-saml
Same vendor: SAML-Toolkits
Same weakness: CWE-347

V. Comments for CVE-2025-25292

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