GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to download private debugging symbols from inaccessible projects due to improper access control.
https://hackerone.com/reports/3556163
https://gitlab.com/gitlab-org/gitlab/-/work_items/591229
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/