{"id":"CVE-2021-33845","aliases":["EUVD-2021-20519","GHSA-8h69-rhj2-r69p"],"status":"published","title":"Username enumeration through lockout message in REST API","description":"The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00901,"percentile":0.59984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203"],"published":"2022-05-06T16:35:58Z","modified":"2026-06-17T03:55:18Z","products":[{"vendor":"splunk","product":"splunk"},{"vendor":"splunk","product":"splunk enterprise"}],"references":[{"url":"https://www.splunk.com/en_us/product-security/announcements/svd-2022-0502.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://research.splunk.com/application/splunk_user_enumeration_attempt/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33845"},{"url":"https://github.com/advisories/GHSA-8h69-rhj2-r69p"}],"sources":{"cve":[{"id":"CVE-2021-33845","title":"Username enumeration through lockout message in REST API","description":"The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.","status":"published","published":"2022-05-06T16:35:58Z","modified":"2024-08-04T00:05:51.041Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20519","description":"The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.","status":"published","published":"2022-05-06T16:35:58Z","modified":"2024-08-04T00:05:51Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T03:24:33.318275Z"}],"ghsa":[{"id":"GHSA-8h69-rhj2-r69p","title":"The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The...","description":"The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.","status":"published","published":"2022-05-07T00:00:40Z","modified":"2023-02-01T05:02:09Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:49:51.128354Z"}],"nvd":[{"id":"CVE-2021-33845","description":"The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.","status":"published","published":"2022-05-06T17:15:08.577Z","modified":"2026-06-17T03:55:18.2Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}