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Description

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.

PUBLISHED Reserved 2026-01-22 | Published 2026-05-14 | Updated 2026-05-14 | Assigner GitLab




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

17.10 (semver) before 18.9.7
affected

18.10 (semver) before 18.10.6
affected

18.11 (semver) before 18.11.3
affected

Credits

Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program finder

References

hackerone.com/reports/3480620 (HackerOne Bug Bounty Report #3480620) technical-description exploit permissions-required

gitlab.com/gitlab-org/gitlab/-/work_items/587326

about.gitlab.com/...3/patch-release-gitlab-18-11-3-released/

cve.org (CVE-2026-1338)

nvd.nist.gov (CVE-2026-1338)

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