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

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-94606
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 21:12 UTC · Revision 1

Source evidence

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

core-osv · Original source

Published 24 Sept 2026, 16:23 UTC

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.

osv:CVE-2026-94606
Complete source record
{
  "id": "a48cfb54da70f0d1476ac97da41531bdac2c60db4bcb074d3e5f2db835aab7cb",
  "url": "https://osv.dev/vulnerability/CVE-2026-94606",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "authentik: MFA Bypass via State Confusion / Parameter Injection in AuthenticatorEmailStage",
    "summary": "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.",
    "evidence": "osv:CVE-2026-94606",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-94606",
      "aliases": [
        "BIT-authentik-2026-94606",
        "CVE-2026-94606",
        "GHSA-qgqp-xh8r-v73r"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/goauthentik/authentik",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
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                },
                {
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                },
                {
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                },
                {
                  "introduced": "f3753ec20ce13ef672401a131379d1a5a2d3439b"
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                {
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              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2026.2.7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
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                        "introduced": "2026.5.0"
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
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                        "introduced": "2026.8.0"
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                      {
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
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                        "fixed": "01d4349f2aaa9beda532f92e2a251a17fefee9b3"
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                    "source": "REFERENCES_COMMIT"
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                  {
                    "range": [
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                        "fixed": "1fcf9868133e5d05e266edbc1f6f3ee972baa3f9"
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                    "source": "REFERENCES_COMMIT"
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                  {
                    "range": [
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                        "fixed": "c10ae83ebf8c61de2f1922edf1fab504d9f3b06f"
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                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ec41732339726fba477182c0906a8d930b145beb"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94606.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.571020782Z",
      "provider": "osv",
      "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/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/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94606.json",
        "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-94606",
        "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"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287",
          "CWE-807"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94606.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-94606",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490118,
  "published_at": "2026-09-24T16:23:30.925+00:00"
}