{"id":"CVE-2021-22251","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-22251","generatedAt":"2026-10-27T21:20:22.660Z","title":"Improper validation of invited users' email address in GitLab EE affecting all versions since 12.2 allowed projects to add members with email address domain that should be blocked by group settings","description":"Improper validation of invited users' email address in GitLab EE affecting all versions since 12.2 allowed projects to add members with email address domain that should be blocked by group settings","published":"2021-08-23T20:15:13.000Z","lastModified":"2026-06-17T03:36:53.000Z","status":"Modified","sourceIdentifier":"cve@gitlab.com","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-863"],"affected":["gitlab/gitlab"],"epss":{"score":0.00819,"percentile":0.56932,"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 (0.82%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22251.json","tags":["Vendor Advisory"],"source":"cve@gitlab.com"},{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/14004","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"cve@gitlab.com"},{"url":"https://hackerone.com/reports/679567","tags":["Permissions Required","Third Party Advisory"],"source":"cve@gitlab.com"},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22251.json","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/14004","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hackerone.com/reports/679567","tags":["Permissions Required","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-22251","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."}