CVE-2023-5356 HIGH

CVE-2023-5356: Incorrect Authorization in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-863 · Incorrect authorization
Published January 12, 2024
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Incorrect authorization checks in GitLab CE/EE from all versions starting from 8.13 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2, allows a user to abuse slack/mattermost integrations to execute slash commands as another user.

Key dates

02Disclosure timeline

January 12, 2024 CVE published
April 28, 2026 Record updated