CVE-2023-6840 MEDIUM

CVE-2023-6840: Missing Authorization in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-862 · Missing authorization
Published February 7, 2024
Last update April 24, 2026
View on NVD All CVEs

CVSS base score

6.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity High

CVSS vector

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

What the vulnerability does

01Description

An issue has been discovered in GitLab EE affecting all versions from 16.4 prior to 16.6.7, 16.7 prior to 16.7.5, and 16.8 prior to 16.8.2 which allows a maintainer to change the name of a protected branch that bypasses the security policy added to block MR.

Key dates

02Disclosure timeline

February 7, 2024 CVE published
April 24, 2026 Record updated