漏洞信息
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Vulnerability Title
authentik: Authentication Flow Bypass via Unguarded challenge_valid() in AuthenticatorEndpointGDTCStage and GoogleChromeStageView
Vulnerability Description
authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the enterprise Google Chrome device-trust stages advance the flow without confirming that the out-of-band device attestation actually ran. Affected enterprise deployments place either a Google Chrome Endpoint stage with mode set to REQUIRED or the deprecated Google Chrome Device Trust Connector stage in an authentication flow. The device attestation occurs in a verification iframe that calls the Google Verified Access API and records the verified device on success, but the vulnerable stages treat the flow as passed as soon as the stage is submitted. An attacker who can reach such a stage, including after primary username and password authentication, can skip the verification iframe and authenticate from a device that was never verified. Where device trust is the only additional factor, that protection is fully bypassed, while other configured factors remain in force. This issue is fixed in versions 2026.2.6 and 2026.5.5.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
访问控制不恰当
Vulnerability Title
Authentik Security authentik 权限许可和访问控制问题漏洞
Vulnerability Description
Authentik Security authentik是Authentik Security组织的一个用于现代 SSO 的开源身份提供商 (IdP)。 Authentik Security authentik 2026.2.6之前版本和2026.5.0至2026.5.5之前版本存在安全漏洞,该漏洞源于Google Chrome设备信任阶段未确认带外设备证明实际运行即推进流程,可能导致攻击者跳过验证iframe,从未经验证的设备进行身份验证。
CVSS Information
N/A
Vulnerability Type
N/A