{"id":"CVE-2024-1249","summary":"Keycloak: org.keycloak.protocol.oidc: unvalidated cross-origin messages in checkloginiframe leads to ddos","details":"A flaw was found in Keycloak's OIDC component in the \"checkLoginIframe,\" which allows unvalidated cross-origin messages. This flaw allows attackers to coordinate and send millions of requests in seconds using simple code, significantly impacting the application's availability without proper origin validation for incoming messages.","aliases":["GHSA-m6q9-p373-g5q8"],"modified":"2026-05-18T05:58:45.703316014Z","published":"2024-04-17T13:22:48.335Z","related":["CGA-x7qj-vc34-wjmq"],"database_specific":{"cna_assigner":"redhat","cwe_ids":["CWE-346"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/1xxx/CVE-2024-1249.json"},"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"WEB","url":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html"},{"type":"WEB","url":"https://catalog.redhat.com/software/containers/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1860"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1861"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1862"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1864"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1866"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1867"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:1868"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:2945"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:4057"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2024-1249"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/1xxx/CVE-2024-1249.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-1249"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2262918"},{"type":"PACKAGE","url":"https://github.com/keycloak/keycloak"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/keycloak/keycloak","events":[{"introduced":"ff6807e97749426a0b935070afcf0127d3c484f3"},{"fixed":"bf8c3c32e53449a632381605f1162fafe9abe8eb"},{"introduced":"1d4ce3d8e9dbc9af996f9248996c78e145902a35"},{"fixed":"27d38787d9eae0854f79a358cda77f834008b71a"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"21.1.0"},{"fixed":"22.0.10"},{"introduced":"23.0.0"},{"fixed":"24.0.3"}]}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-1249.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H"}]}