{"id":"CVE-2025-4979","aliases":["BIT-gitlab-2025-4979","EUVD-2025-16137","GHSA-9vrq-hh79-6v9m","UBUNTU-CVE-2025-4979"],"status":"published","title":"Insufficient Granularity of Access Control in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","severity":{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00442,"percentile":0.38815,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1220"],"published":"2025-05-22T13:30:28Z","modified":"2026-10-30T10:47:16Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["17.11.3","18.0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"17.11.3"},{"introduced":"18.0.0"},{"fixed":"18.0.1"}]}]},{"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/524455","tags":["issue-tracking","permissions-required","Broken Link","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4979","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-9vrq-hh79-6v9m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/4xxx/CVE-2025-4979.json","tags":["advisory"]},{"url":"git://git@gitlab.com:gitlab-org/gitlab.git","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2025-4979","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-4979","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-4979","title":"Insufficient Granularity of Access Control in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-22T13:30:28.496Z","modified":"2025-05-22T14:21:32.253Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-1220"],"updated_at":"2026-11-02T14:32:48.512547Z"}],"euvd":[{"id":"EUVD-2025-16137","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-22T13:30:28Z","modified":"2025-05-22T14:21:32Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:40.629205Z"}],"ghsa":[{"id":"GHSA-9vrq-hh79-6v9m","title":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before...","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-22T15:34:50Z","modified":"2025-05-22T15:34:57Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-1220"],"updated_at":"2026-11-02T15:02:24.130786Z"}],"nvd":[{"id":"CVE-2025-4979","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-22T14:16:08.617Z","modified":"2026-06-17T09:34:25.803Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-1220"],"updated_at":"2026-11-02T14:11:09.562272Z"}],"osv":[{"id":"CVE-2025-4979","title":"Insufficient Granularity of Access Control in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-22T13:30:28.496Z","modified":"2026-10-30T10:47:16.368827207Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-1220"],"updated_at":"2026-11-02T15:44:50.037003Z"},{"id":"UBUNTU-CVE-2025-4979","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-22T14:16:00Z","modified":"2025-10-24T05:16:32Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T16:55:50.31802Z"},{"id":"BIT-gitlab-2025-4979","title":"Insufficient Granularity of Access Control in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.","status":"published","published":"2025-05-26T07:43:31.883Z","modified":"2025-08-11T00:06:06.142Z","updated_at":"2026-11-02T15:28:30.70064Z"}]}}