CVE-2026-94606 (GCVE-0-2026-94606)
Vulnerability from cvelistv5 – Published: 2026-09-24 16:23 – Updated: 2026-10-05 15:33
VLAI
EPSS
VEX
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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 14:53 UTC
Assigner
References
15 references
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 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-94606",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-05T14:53:08.106815Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T15:33:40.648Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"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"
}
]
}
],
"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."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "CWE-287: Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-807",
"description": "CWE-807: Reliance on Untrusted Inputs in a Security Decision",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-24T16:23:30.925Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25958",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25958"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25963",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25963"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25968",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25968"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25973",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25973"
},
{
"name": "https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3"
},
{
"name": "https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9"
},
{
"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",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-94606",
"date": "2026-10-08",
"epss": "0.00489",
"percentile": "0.40113"
},
"nvd": {
"cve": {
"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"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-94606",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-05T14:53:08.106815Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T14:53:08.717Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"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"
}
]
}
],
"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."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "CWE-287: Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-807",
"description": "CWE-807: Reliance on Untrusted Inputs in a Security Decision",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-24T16:23:30.925Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-qgqp-xh8r-v73r"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25958",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25958"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25963",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25963"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25968",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25968"
},
{
"name": "https://github.com/goauthentik/authentik/pull/25973",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/pull/25973"
},
{
"name": "https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/commit/01d4349f2aaa9beda532f92e2a251a17fefee9b3"
},
{
"name": "https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/goauthentik/authentik/commit/1fcf9868133e5d05e266edbc1f6f3ee972baa3f9"
},
{
"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"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
Loading…
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.
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.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…