{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-14781", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-07-05T06:32:45.726Z", "datePublished": "2026-07-05T06:55:30.225Z", "dateUpdated": "2026-07-05T06:55:30.225Z"}, "containers": {"cna": {"title": "Keycloak-services: keycloak-services: oidc email_verified claim incorrectly applied to userinfo email", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw exists in the org.keycloak.broker.oidc package where the OIDC broker incorrectly synchronizes the email_verified claim. When an OIDC identity provider is configured with trustEmail=true and the userinfo endpoint is enabled, Keycloak retrieves the email address from the userinfo response but retrieves the email_verified status exclusively from the id_token.\nThe root cause is a lack of validation ensuring that the email_verified claim in the id_token actually refers to the email address returned by the userinfo endpoint. If these two sources return different email addresses, the id_token's email_verified=true claim is blindly applied to the userinfo email.\nExploitation Conditions:\nThe OIDC identity provider must have trustEmail set to true (non-default).\n\nThe userinfo endpoint must be enabled (default).\n\nThe attacker must control or have compromised the upstream OIDC provider.\n\n\nConcrete Impact:\nMark arbitrary email addresses as verified in the Keycloak database.\n\nBypass email-based security controls or verification workflows.\n\nPotential account takeover if the application relies solely on the email_verified flag from the IdP to link accounts."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Build of Keycloak", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "keycloak-services", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:build_keycloak:"]}, {"vendor": "Red Hat", "product": "Red Hat Build of Keycloak", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhbk/keycloak-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:build_keycloak:"]}, {"vendor": "Red Hat", "product": "Red Hat Build of Keycloak", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhbk-openshift-rhel9/rhbk-openshift-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:build_keycloak:"]}, {"vendor": "Red Hat", "product": "Red Hat Data Grid 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "keycloak-services", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:jboss_data_grid:8"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "keycloak-services", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:jbosseapxp"]}, {"vendor": "Red Hat", "product": "Red Hat Single Sign-On 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "keycloak-services", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-14781", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2497118", "name": "RHBZ#2497118", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-07-05T06:49:14.781Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-1288", "description": "Improper Validation of Consistency within Input", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-1288: Improper Validation of Consistency within Input", "timeline": [{"lang": "en", "time": "2026-07-02T17:12:31.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-07-05T06:49:14.781Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank Kevin Bozell for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-07-05T06:55:30.225Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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