{"id":"CVE-2021-22217","aliases":["BIT-gitlab-2021-22217","EUVD-2021-9363","GHSA-r8qj-g779-h5pv","UBUNTU-CVE-2021-22217"],"status":"published","title":"A denial of service vulnerability in all versions of GitLab CE/EE before 13.12.2, 13.11.5 or 13...","description":"A denial of service vulnerability in all versions of GitLab CE/EE before 13.12.2, 13.11.5 or 13.10.5 allows an attacker to cause uncontrolled resource consumption with a specially crafted issue or merge request","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01974,"percentile":0.80613,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2021-06-08T18:25:29Z","modified":"2026-10-30T10:31:06Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["13.10.5","13.11.5","13.12.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"13.10.5"},{"introduced":"13.11.0"},{"fixed":"13.11.5"},{"introduced":"13.12.0"},{"fixed":"13.12.2"}]}]},{"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/300709","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/1090049","tags":["x_refsource_MISC","x_transferred","Permissions Required","web","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22217.json","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22217","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r8qj-g779-h5pv"},{"url":"https://ubuntu.com/security/CVE-2021-22217","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-22217","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-22217","description":"A denial of service vulnerability in all versions of GitLab CE/EE before 13.12.2, 13.11.5 or 13.10.5 allows an attacker to cause uncontrolled resource consumption with a specially crafted issue or merge 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