关键漏洞信息 漏洞描述 漏洞名称: SAML authentication bypass due to namespace handling (parser differential) 漏洞严重性: Critical (9.3/10) 受影响版本 受影响版本: = 1.18.0 漏洞摘要 Ruby-saml up to and including 1.12.4, there is an authentication bypass vulnerability because of an incomplete fix for CVE-2025-25292. 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. The vulnerability does not affect the version 1.18.0. 影响 That allows an attacker to be able to execute a Signature Wrapping attack and bypass the authentication. CVSS v4 Base Metrics Attack Vector: Network Attack Complexity: Low Attack Requirements: None Privileges Required: None User Interaction: None Confidentiality Impact: High Integrity Impact: High Availability Impact: None Subsequent System Impact: None CVE ID CVE-2025-66567 弱点 CWE ID: CWE-347 致谢 报告者: d0ge