{"id":"UBUNTU-CVE-2026-1338","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with developer-role permissions to delete protected container registry tags due to improper authorization checks.","modified":"2026-05-20T22:01:25.071571688Z","published":"2026-05-14T06:16:00Z","upstream":["CVE-2026-1338"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-1338"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-1338"},{"type":"REPORT","url":"https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/587326"},{"type":"REPORT","url":"https://hackerone.com/reports/3480620"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/gitlab?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"],"ecosystem_specific":{"binaries":[{"binary_version":"8.5.8+dfsg-5","binary_name":"gitlab"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1338.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}