Vulnerability-Lookup

CVE-2026-94606 (GCVE-0-2026-94606)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:23 – Updated: 2026-10-05 15:33

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.

Severity

8.9 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-05 14:53 UTC

CWE

CWE-287 - Improper Authentication
CWE-807 - Reliance on Untrusted Inputs in a Security Decision

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7610 records in the last 180 days details

References

15 references

URL	Tags
https://github.com/goauthentik/authentik/security…	x_refsource_CONFIRM
https://github.com/goauthentik/authentik/pull/25958	x_refsource_MISC
https://github.com/goauthentik/authentik/pull/25963	x_refsource_MISC
https://github.com/goauthentik/authentik/pull/25968	x_refsource_MISC
https://github.com/goauthentik/authentik/pull/25973	x_refsource_MISC
https://github.com/goauthentik/authentik/commit/0…	x_refsource_MISC
https://github.com/goauthentik/authentik/commit/1…	x_refsource_MISC
https://github.com/goauthentik/authentik/commit/c…	x_refsource_MISC
https://github.com/goauthentik/authentik/commit/e…	x_refsource_MISC
https://docs.goauthentik.io/releases/2026.2#fixed…	x_refsource_MISC
https://docs.goauthentik.io/releases/2026.5#fixed…	x_refsource_MISC
https://docs.goauthentik.io/releases/2026.8#fixed…	x_refsource_MISC
https://github.com/goauthentik/authentik/releases…	x_refsource_MISC
https://github.com/goauthentik/authentik/releases…	x_refsource_MISC
https://github.com/goauthentik/authentik/releases…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
goauthentik	authentik	Affected: < 2026.2.7 Affected: >= 2026.5.0, < 2026.5.7 Affected: >= 2026.8.0, < 2026.8.2	guessed

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              "name": "https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f"
            },
            {
              "name": "https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb"
            },
            {
              "name": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627"
            },
            {
              "name": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657"
            },
            {
              "name": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682"
            },
            {
              "name": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7"
            },
            {
              "name": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7"
            },
            {
              "name": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2"
            }
          ],
          "source": {
            "advisory": "GHSA-qgqp-xh8r-v73r",
            "discovery": "UNKNOWN"
          },
          "title": "authentik: MFA Bypass via State Confusion / Parameter Injection in AuthenticatorEmailStage"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-94606",
        "datePublished": "2026-09-24T16:23:30.925Z",
        "dateReserved": "2026-09-21T21:32:23.741Z",
        "dateUpdated": "2026-10-05T15:33:40.648Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

bit-authentik-2026-94606

Vulnerability from bitnami_vulndb

Published

2026-10-01 09:23

Modified

2026-10-01 09:55

Summary

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

Details

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "authentik",
        "purl": "pkg:bitnami/authentik"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.2.7"
            },
            {
              "introduced": "2026.5.0"
            },
            {
              "fixed": "2026.5.7"
            },
            {
              "introduced": "2026.8.0"
            },
            {
              "fixed": "2026.8.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-94606"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "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\u0027s 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.",
  "id": "BIT-authentik-2026-94606",
  "modified": "2026-10-01T09:55:18.588Z",
  "published": "2026-10-01T09:23:05.728Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627"
    },
    {
      "type": "WEB",
      "url": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657"
    },
    {
      "type": "WEB",
      "url": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/pull/25958"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/pull/25963"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/pull/25968"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/pull/25973"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-94606"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "authentik: MFA Bypass via State Confusion / Parameter Injection in AuthenticatorEmailStage"
}

FKIE_CVE-2026-94606

Vulnerability from fkie_nvd - Published: 2026-09-24 17:17 - Updated: 2026-10-05 16:17

Severity

8.9 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

Summary

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "authentik",
          "vendor": "goauthentik",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2026.2.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 2026.5.0, \u003c 2026.5.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 2026.8.0, \u003c 2026.8.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u0027s 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."
    }
  ],
  "id": "CVE-2026-94606",
  "lastModified": "2026-10-05T16:17:17.863",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.9,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-94606",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-05T14:53:08.106815Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-24T17:17:17.063",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/commit/c10ae83ebf8c61de2f1922edf1fab504d9f3b06f"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/commit/ec41732339726fba477182c0906a8d930b145beb"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/pull/25958"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/pull/25963"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/pull/25968"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/pull/25973"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-807"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

CVE-2026-94606 (GCVE-0-2026-94606)

bit-authentik-2026-94606

Vulnerability from bitnami_vulndb

FKIE_CVE-2026-94606

Tags

Sightings

Nomenclature

Vulnerability timeline

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