{"id":"CVE-2021-22177","aliases":["BIT-gitlab-2021-22177","EUVD-2021-9323","GHSA-vx5g-jgx3-6mx9","UBUNTU-CVE-2021-22177"],"status":"published","title":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which...","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01206,"percentile":0.68714,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2021-04-01T14:19:07Z","modified":"2026-10-30T10:30:22Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["13.6.7","13.7.7","13.8.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"12.6.0"},{"fixed":"13.6.7"},{"introduced":"13.7.0"},{"fixed":"13.7.7"},{"introduced":"13.8.0"},{"fixed":"13.8.4"}]}]},{"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/238988","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/953444","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","advisory","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22177.json","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22177","tags":["web"]},{"url":"https://github.com/advisories/GHSA-vx5g-jgx3-6mx9"},{"url":"https://ubuntu.com/security/CVE-2021-22177","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-22177","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-22177","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2021-04-01T14:19:07Z","modified":"2024-08-03T18:37:17.998Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9323","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2021-04-01T14:19:07Z","modified":"2024-08-03T18:37:17Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T03:25:03.638882Z"}],"ghsa":[{"id":"GHSA-vx5g-jgx3-6mx9","title":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which...","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2022-05-24T17:46:03Z","modified":"2023-01-29T05:07:03Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:46:08.723565Z"}],"nvd":[{"id":"CVE-2021-22177","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2021-04-01T15:15:13.957Z","modified":"2026-06-17T03:36:44.907Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","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:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:06:51.197859Z"}],"osv":[{"id":"CVE-2021-22177","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2021-04-01T15:15:13.957Z","modified":"2026-10-30T10:30:22.90080369Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"UBUNTU-CVE-2021-22177","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2021-04-01T15:15:00Z","modified":"2025-10-24T04:50:07Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:54:26.29421Z"},{"id":"BIT-gitlab-2021-22177","description":"Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.","status":"published","published":"2024-03-06T11:20:33.346Z","modified":"2026-09-08T08:48:23.063826372Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}