漏洞信息
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Vulnerability Title
authentik: XML Signature Wrapping in SAML Source ACS allows authentication as arbitrary federated user
Vulnerability Description
authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik's SAML Source ACS endpoint is vulnerable to XML Signature Wrapping when validating upstream SAML responses. An attacker with any account at the upstream IdP can reuse a valid signed assertion to authenticate as another federated user. This issue has been patched in versions 2025.12.5, 2026.2.3, and 2026.5.1.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability Type
输入验证不恰当
Vulnerability Title
authentik 输入验证错误漏洞
Vulnerability Description
authentik是authentik开源的一个身份提供应用程序。 authentik 2025.12.5之前版本、2026.2.3之前版本和2026.5.1之前版本存在输入验证错误漏洞,该漏洞源于SAML Source ACS端点验证上游SAML响应时存在XML签名包装漏洞,可能导致攻击者重用有效签名断言以其他联合用户身份进行认证。
CVSS Information
N/A
Vulnerability Type
N/A