PT-2026-40875 · Gitlab · Gitlab Ce/Ee

Published 2026-05-14 · Updated 2026-05-18 · CVE-2026-6883

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions GitLab EE versions 15.7 through 18.9.6 GitLab EE versions 18.10 through 18.10.5 GitLab EE versions 18.11 through 18.11.2

Description An issue exists where an authenticated user can bypass merge request approval requirements. This occurs due to the improper cleanup of orphaned policy records, which are outdated or disconnected configuration entries that remain in the system after the associated policy has been deleted.

Recommendations Update versions 15.7 through 18.9.6 to 18.9.7. Update versions 18.10 through 18.10.5 to 18.10.6. Update versions 18.11 through 18.11.2 to 18.11.3.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

BIT-GITLAB-2026-6883

CVE-2026-6883

Affected Products

Gitlab Ce/Ee

References · 8

• https://ubuntu.com/security/CVE-2026-6883 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2026-6883 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6883 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-6883 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-6883 · Vendor Advisory
• https://gitlab.com/gitlab-org/gitlab/-/work_items/596350 · Note
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note
• https://t.me/CVEtracker/53746 · Telegram Post