{"id":"CVE-2021-3513","details":"A flaw was found in keycloak where a brute force attack is possible even when the permanent lockout feature is enabled. This is due to a wrong error message displayed when wrong credentials are entered. The highest threat from this vulnerability is to confidentiality.","aliases":["GHSA-xv7h-95r7-595j"],"modified":"2026-08-07T17:02:16.266322Z","published":"2022-08-22T15:15:13.420Z","references":[{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2021-3513"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1953439"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/keycloak/keycloak","events":[{"introduced":"0"},{"fixed":"af1855ebc6a3d025b58b697c9bc32567fb512eec"}],"database_specific":{"cpe":"cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"13.0.0"}],"source":"CPE_RANGE"}}],"versions":["2.4.0.Test","1.3.0.Final","1.1.0.Beta2","1.0.0.Final","1.0-final","1.0-rc-1","1.0-beta-4","1.0-beta-2","1.0-beta-1","1.0-alpha-3","1.0-alpha-2","1.0-alpha-1","1.0-alpha-1-12062013"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3513.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}