CVE-2026-4633

{"id": "CVE-2026-4633", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "published": "2026-03-23T11:16:25.053", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-4633", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450247", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-209"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en Keycloak. Un atacante remoto puede explotar mensajes de error diferenciales durante el flujo de inicio de sesi\u00f3n 'identity-first' cuando las Organizaciones est\u00e1n habilitadas. Esta vulnerabilidad permite a un atacante determinar la existencia de usuarios, lo que lleva a la revelaci\u00f3n de informaci\u00f3n a trav\u00e9s de la enumeraci\u00f3n de usuarios."}], "lastModified": "2026-03-23T14:31:37.267", "sourceIdentifier": "secalert@redhat.com"}