Vulnerability Report

CVE-2026-4916

Title: Privilege Escalation via Improper Authorization

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-4916.

CWE Category CWE-862

Published Date Apr 08, 2026

Modified Date Apr 16, 2026

Exploit Status Not Found

Score 2.7 CVSS v3.1

Exploit Probability (EPSS)

0.01%

Vulnerability Summary

CVE-2026-4916: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user with custom role permissions to demote or remove higher-privileged group members due to improper authorization checks on member management operations.

Impacted Vendors

gitlab 1

jenkins 1

Reference Links

https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/ https://gitlab.com/gitlab-org/gitlab/-/work_items/565414 https://hackerone.com/reports/3301240

CVSS v3.1

Source Entity [email protected]

Severity LOW

2.7

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns