CVE-2026-94606

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.

CVSS Vector

References

• 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/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3
• https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9
• https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f
• https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb
• 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/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
• https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r