{"id":"CVE-2023-4918","aliases":["EUVD-2023-2438","GHSA-5q66-v53q-pm35"],"status":"published","title":"Plaintext storage of user password","description":"A flaw was found in the Keycloak package, more specifically org.keycloak.userprofile. When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular user attributes. All users and clients with proper rights and roles are able to read users attributes, allowing a malicious user with minimal access to retrieve the users passwords in clear text, jeopardizing their environment.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00574,"percentile":0.47819,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-256","CWE-319"],"published":"2023-09-12T19:24:59Z","modified":"2026-10-28T02:30:30Z","fixes":[{"ecosystem":"Maven","package":"org.keycloak:keycloak-core","fixed_in":["22.0.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.keycloak:keycloak-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"22.0.2"},{"last_affected":"22.0.2"},{"fixed":"22.0.3"}]}],"versions":["22.0.2"]},{"source":"osv","ecosystem":"Maven","package":"org.keycloak:keycloak-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"22.0.2"},{"fixed":"22.0.3"}]}],"versions":["22.0.2"]}],"products":[{"vendor":"red hat","product":"red hat single sign-on 7"},{"vendor":"redhat","product":"keycloak"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2023-4918","tags":["vdb-entry","x_refsource_REDHAT","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2238588","tags":["issue-tracking","x_refsource_REDHAT","x_transferred","Issue Tracking","Vendor Advisory","report","web"]},{"url":"https://github.com/keycloak/keycloak/security/advisories/GHSA-5q66-v53q-pm35","tags":["x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4918","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5q66-v53q-pm35"},{"url":"https://access.redhat.com/downloads/content/package-browser/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4918.json","tags":["advisory"]},{"url":"https://github.com/keycloak/keycloak","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-4918","title":"Plaintext storage of user password","description":"A flaw was found in the Keycloak package, more specifically org.keycloak.userprofile. When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular user attributes. All users and clients with proper rights and roles are able to read users attributes, allowing a malicious user with minimal access to retrieve the users passwords in clear text, jeopardizing their environment.","status":"published","published":"2023-09-12T19:24:59.955Z","modified":"2024-09-25T19:53:21.639Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-256"],"updated_at":"2026-11-02T14:35:30.116696Z"}],"euvd":[{"id":"EUVD-2023-2438","description":"A flaw was found in the Keycloak package, more specifically org.keycloak.userprofile. When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular user attributes. All users and clients with proper rights and roles are able to read users attributes, allowing a malicious user with minimal access to retrieve the users passwords in clear text, jeopardizing their environment.","status":"published","published":"2023-09-12T19:24:59Z","modified":"2024-09-25T19:53:21Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:10.832665Z"}],"ghsa":[{"id":"GHSA-5q66-v53q-pm35","title":"Keycloak vulnerable to Plaintext Storage of User Password","description":"A flaw was discovered in Keycloak Core package.  When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular attributes in the users attributes. The password is also created, but the user attributes must not be there. This way, any entities (all users and clients with proper rights/roles) are able to retrieve the users passwords in clear-text. \n\n### Impact\nPasswords for self-registered users are stored as cleartext attributes associated with the user. \n\n### Mitigation\nDisable self-registration for users in all realms until patched.\n\n","status":"published","published":"2023-09-12T21:10:37Z","modified":"2023-11-11T05:02:04Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-256","CWE-319"],"updated_at":"2026-11-02T14:37:20.311836Z"}],"nvd":[{"id":"CVE-2023-4918","description":"A flaw was found in the Keycloak package, more specifically org.keycloak.userprofile. When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular user attributes. All users and clients with proper rights and roles are able to read users attributes, allowing a malicious user with minimal access to retrieve the users passwords in clear text, jeopardizing their environment.","status":"published","published":"2023-09-12T20:15:10.39Z","modified":"2026-06-17T06:38:53.88Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-256","CWE-319"],"updated_at":"2026-11-02T14:08:28.268644Z"}],"osv":[{"id":"CVE-2023-4918","title":"Plaintext storage of user password","description":"A flaw was found in the Keycloak package, more specifically org.keycloak.userprofile. When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular user attributes. All users and clients with proper rights and roles are able to read users attributes, allowing a malicious user with minimal access to retrieve the users passwords in clear text, jeopardizing their environment.","status":"published","published":"2023-09-12T19:24:59.955Z","modified":"2026-10-28T02:30:30.374707667Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-256"],"updated_at":"2026-11-02T15:44:34.72355Z"},{"id":"GHSA-5q66-v53q-pm35","title":"Keycloak vulnerable to Plaintext Storage of User Password","description":"A flaw was discovered in Keycloak Core package.  When a user registers itself through registration flow, the \"password\" and \"password-confirm\" field from the form will occur as regular attributes in the users attributes. The password is also created, but the user attributes must not be there. This way, any entities (all users and clients with proper rights/roles) are able to retrieve the users passwords in clear-text. \n\n### Impact\nPasswords for self-registered users are stored as cleartext attributes associated with the user. \n\n### Mitigation\nDisable self-registration for users in all realms until patched.\n\n","status":"published","published":"2023-09-12T21:10:37Z","modified":"2026-07-16T03:59:27.6009054Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-256","CWE-319"],"updated_at":"2026-11-02T15:46:38.553953Z"}]}}