{"id":"CVE-2026-4916","summary":"Missing Authorization in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user with custom role permissions to demote or remove higher-privileged group members due to improper authorization checks on member management operations.","aliases":["BIT-gitlab-2026-4916"],"modified":"2026-08-27T11:30:28.135742162Z","published":"2026-04-08T22:25:22.837Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4916.json","unresolved_ranges":[{"extracted_events":[{"introduced":"18.2"},{"fixed":"18.8.9"},{"introduced":"18.9"},{"fixed":"18.9.5"},{"introduced":"18.10"},{"fixed":"18.10.3"}],"source":"AFFECTED_FIELD"},{"source":"DESCRIPTION","extracted_events":[{"introduced":"18.2"},{"fixed":"18.8.9"},{"introduced":"18.9"},{"fixed":"18.9.5"},{"introduced":"18.10"},{"fixed":"18.10.3"}]}],"cna_assigner":"GitLab"},"references":[{"type":"WEB","url":"https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/565414"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4916.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4916"},{"type":"REPORT","url":"https://hackerone.com/reports/3301240"},{"type":"PACKAGE","url":"git://git@gitlab.com:gitlab-org/gitlab.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"64403a0daee4413eb45b939590f37c351b8e72bf"},{"fixed":"0e5855944a09654b84df0e4549c957a5d8c11c9d"},{"introduced":"20fe49b575fedd2b8cadc2c0640178879854aeb3"},{"fixed":"195c0c16799d8e10e8c16f129b0719f6c48b6110"},{"introduced":"57c08314af5bc8f317b1967330f92ed029e2c628"},{"fixed":"1dcd29ee5eb310bc7572339a95188e123e83970b"}],"database_specific":{"extracted_events":[{"introduced":"18.2.0"},{"fixed":"18.8.9"},{"introduced":"18.9.0"},{"fixed":"18.9.5"},{"introduced":"18.10.0"},{"fixed":"18.10.3"}],"source":"CPE_RANGE","cpe":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*"]}}],"versions":["v18.9.0-ee","v18.9.4-ee","v18.10.2-ee","v18.10.0-ee"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4916.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"}]}