CVE-2025-64521

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{"affected": [{"affectedData": [{"product": "authentik", "vendor": "goauthentik", "versions": [{"status": "affected", "version": "< 2025.10.2"}, {"status": "affected", "version": "< 2025.8.5"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*", "matchCriteriaId": "5F21EB7E-BB70-4943-9906-475C772482E9", "versionEndExcluding": "2025.8.5", "versionStartIncluding": "2025.8.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*", "matchCriteriaId": "33A96DEB-01A3-42C1-B17B-A6F65CBA55C0", "versionEndExcluding": "2025.10.2", "versionStartIncluding": "2025.10.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "authentik is an open-source Identity Provider. Prior to versions 2025.8.5 and 2025.10.2, when authenticating with client_id and client_secret to an OAuth provider, authentik creates a service account for the provider. In previous authentik versions, authentication for this account was possible even when the account was deactivated. Other permissions are correctly applied and federation with other providers still take assigned policies correctly into account. authentik versions 2025.8.5 and 2025.10.2 fix this issue. A workaround involves adding a policy to the application that explicitly checks if the service account is still valid, and deny access if not."}, {"lang": "es", "value": "authentik es un proveedor de identidad de c\u00f3digo abierto. Versiones anteriores a las 2025.8.5 y 2025.10.2, al autenticarse con client_id y client_secret en un proveedor OAuth, authentik crea una cuenta de servicio para el proveedor. En versiones anteriores de authentik, la autenticaci\u00f3n para esta cuenta era posible incluso cuando la cuenta estaba desactivada. Otros permisos se aplican correctamente y la federaci\u00f3n con otros proveedores sigue teniendo en cuenta correctamente las pol\u00edticas asignadas. Las versiones de authentik 2025.8.5 y 2025.10.2 solucionan este problema. Una soluci\u00f3n alternativa implica a\u00f1adir una pol\u00edtica a la aplicaci\u00f3n que compruebe expl\u00edcitamente si la cuenta de servicio sigue siendo v\u00e1lida y deniegue el acceso en caso contrario."}], "id": "CVE-2025-64521", "lastModified": "2026-10-18T20:10:00.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-64521", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-11-19T21:09:31.811847Z", "version": "2.0.3"}}]}, "published": "2025-11-19T17:15:52.033", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/goauthentik/authentik/commit/9dbdfc3f1be0f1be36f8efce2442897b2a54a71c"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-xr73-jq5p-ch8r"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-289"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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