PT-2026-31547 · Gitlab · Gitlab Ce/Ee

Published 2026-04-08 · Updated 2026-04-13 · CVE-2026-4916

Positive Technologies (AI Summary)

CVSS v2.0

4.0

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 18.2 through 18.8.8, 18.9 through 18.9.4, and 18.10 through 18.10.2

Description A flaw existed in GitLab CE/EE where an authenticated user with custom role permissions could potentially demote or remove higher-privileged group members. This was due to insufficient authorization checks during member management operations.

Recommendations Update to GitLab CE/EE version 18.8.9 or later. Update to GitLab CE/EE version 18.9.5 or later. Update to GitLab CE/EE version 18.10.3 or later.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

BDU:2026-05150

BIT-GITLAB-2026-4916

CVE-2026-4916

Affected Products

Gitlab Ce/Ee

References · 11

• 🔥 https://hackerone.com/reports/3301240 · Exploit
• https://ubuntu.com/security/CVE-2026-4916 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-4916 · Security Note
• https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-4916 · Security Note
• https://bdu.fstec.ru/vul/2026-05150 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2026-4916 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-4916 · Vendor Advisory
• https://twitter.com/CVEnew/status/2042010552617119820 · Twitter Post
• https://gitlab.com/gitlab-org/gitlab/-/work_items/565414 · Note
• https://twitter.com/infoflowcloud/status/2042012854962758025 · Twitter Post