{"id":"CVE-2021-39905","aliases":["BIT-gitlab-2021-39905","EUVD-2021-26261","GHSA-9v59-ffhf-ccr8","UBUNTU-CVE-2021-39905"],"status":"published","title":"An information disclosure vulnerability in the GitLab CE/EE API since version 8.9.6 allows a user...","description":"An information disclosure vulnerability in the GitLab CE/EE API since version 8.9.6 allows a user to see basic information on private groups that a public project has been shared with","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":0.00975,"percentile":0.62521,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-11-04T23:17:10Z","modified":"2026-10-30T10:30:38Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["14.2.6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"8.9.6"},{"fixed":"14.2.6"}]}]},{"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/28226","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/538029","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","advisory","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39905.json","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39905","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9v59-ffhf-ccr8"},{"url":"https://ubuntu.com/security/CVE-2021-39905","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-39905","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-39905","description":"An information disclosure vulnerability in the GitLab CE/EE API since version 8.9.6 allows a user to see basic information on private groups that a public project has been shared 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