PT-2026-52204 · Gitlab · Gitlab

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-5309

Mitre

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

GitLab has remediated an issue in GitLab EE affecting all versions from 18.6 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user to read or modify another group's virtual registry cleanup policy settings without authorization.

Exploit

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-5309

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3628793 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5309 · Security Note
• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released · Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/595468 · Note