{"id":"CVE-2021-39884","aliases":["BIT-gitlab-2021-39884","EUVD-2021-26240","GHSA-mq9g-jw9v-3pcf","UBUNTU-CVE-2021-39884"],"status":"published","title":"In all versions of GitLab EE since version 8.13, an endpoint discloses names of private groups...","description":"In all versions of GitLab EE since version 8.13, an endpoint discloses names of private groups that have access to a project to low privileged users that are part of that project.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01123,"percentile":0.66646,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-668"],"published":"2021-10-05T12:27:21Z","modified":"2026-10-30T10:31:03Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["14.1.7","14.2.5","14.3.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"8.13.0"},{"fixed":"14.1.7"},{"introduced":"14.2.0"},{"fixed":"14.2.5"},{"introduced":"14.3.0"},{"fixed":"14.3.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gitlab","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/25414","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/447817","tags":["x_refsource_MISC","x_transferred","Permissions Required","web","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39884.json","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39884","tags":["web"]},{"url":"https://github.com/advisories/GHSA-mq9g-jw9v-3pcf"},{"url":"https://ubuntu.com/security/CVE-2021-39884","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-39884","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-39884","description":"In all versions of GitLab EE since version 8.13, an endpoint discloses names of private groups that have access to a project to low privileged users that are part of that 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project.","status":"published","published":"2021-10-05T13:15:08.313Z","modified":"2026-06-17T04:04:21.577Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:59.314106Z"}],"osv":[{"id":"CVE-2021-39884","description":"In all versions of GitLab EE since version 8.13, an endpoint discloses names of private groups that have access to a project to low privileged users that are part of that 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