8.9

CVE-2026-94606

authentik: MFA Bypass via State Confusion / Parameter Injection in AuthenticatorEmailStage

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellergoauthentik
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Produkt authentik
Version < 2026.2.7
Status affected
Version >= 2026.5.0, < 2026.5.7
Status affected
Version >= 2026.8.0, < 2026.8.2
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.49% 0.395
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 8.9 2.2 6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-807 Reliance on Untrusted Inputs in a Security Decision

The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.

https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r
https://github.com/goauthentik/authentik/pull/25958
https://github.com/goauthentik/authentik/pull/25963
https://github.com/goauthentik/authentik/pull/25968
https://github.com/goauthentik/authentik/pull/25973
https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3
https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9
https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f
https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb
https://docs.goauthentik.io/releases/2026.2#fixed-in-202627
https://docs.goauthentik.io/releases/2026.5#fixed-in-202657
https://docs.goauthentik.io/releases/2026.8#fixed-in-202682
https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7
https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7
https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2