{"id":"CVE-2021-22257","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-22257","generatedAt":"2026-10-27T20:22:33.559Z","title":"This allows user enumeration on such instances.","description":"An issue has been discovered in GitLab affecting all versions starting from 14.0 before 14.0.9, all versions starting from 14.1 before 14.1.4, all versions starting from 14.2 before 14.2.2. The route for /user.keys is not restricted on instances with public visibility disabled. This allows user enumeration on such instances.","published":"2021-10-05T14:15:08.000Z","lastModified":"2026-06-17T03:36:54.000Z","status":"Modified","sourceIdentifier":"cve@gitlab.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":[],"affected":["gitlab/gitlab"],"epss":{"score":0.00938,"percentile":0.60637,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.94%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22257.json","tags":["Vendor Advisory"],"source":"cve@gitlab.com"},{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/23832","tags":["Broken Link"],"source":"cve@gitlab.com"},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22257.json","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/23832","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-22257","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}