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CVE-2026-94606— authentik: MFA Bypass via State Confusion / Parameter Injection in AuthenticatorEmailStage

Quick assessment

Affected
goauthentik authentik
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

authentik 是一款开源的身份提供商（Identity Provider）。在版本 2026.2.7、2026.5.7 和 2026.8.2 之前，authentik 的邮件身份验证器在身份验证或注册流程中，会接受用户在设置请求中提供的收件人地址，而不是使用流程中已预先确定的地址。攻击者若已知目标用户的密码，即可将目标用户的电子邮件地址替换为自己控制的地址，从而接收一次性验证码，并完成该身份验证因子的注册。此漏洞仅在目标用户尚未注册邮件身份验证因子的情况下成立。成功注册后，攻击者即可获得目标用户的会话权限，进

CVSS 8.9 · High EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 3

VendorProduct Version RangeStatus
goauthentik authentik < 2026.2.7 affected
>= 2026.5.0, < 2026.5.7 affected
>= 2026.8.0, < 2026.8.2 affected
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I. Basic Information for CVE-2026-94606

Vulnerability Information
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Vulnerability Title
authentik: MFA Bypass via State Confusion / Parameter Injection in AuthenticatorEmailStage
Source: CVE Program / CVE List V5
Vulnerability Description
authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, authentik email authenticator enrollment during an authentication or enrollment flow accepts a recipient address supplied in the setup request instead of using the address already established by the flow. An actor who knows a target user's password can substitute an attacker-controlled address, receive the one-time code, and finish enrolling the factor as the target. The target must not have enrolled the email factor already. Successful enrollment gives the actor a session as the target and access to single sign-on applications behind the account. Other authenticator types are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
goauthentik authentik < 2026.2.7 -

II. Public POCs for CVE-2026-94606

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III. Intelligence Information for CVE-2026-94606

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Patches & Fixes for CVE-2026-94606 (8)

Vendor Advisories for CVE-2026-94606 (2)

Vendor Pages for CVE-2026-94606 (4)

Same Patch Batch · goauthentik · 2026-09-24 · 5 CVEs total

CVE-2026-94609 8.8 HIGH authentik: Privilege Escalation to Superuser via Group Hierarchy
CVE-2026-94611 8.1 HIGH authentik: Stored credentials are readable with view permission alone
CVE-2026-94613 7.5 HIGH authentik: Denial of Service via Document Type Declarations in SAML Messages
CVE-2026-94612 7.4 HIGH authentik: Authentication bypass via assertion confusion in SAML sources

IV. Related Vulnerabilities

Same product: authentik
Same vendor: goauthentik
Same weakness: CWE-287

V. Comments for CVE-2026-94606

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