CVE-2023-3399 HIGH

CVE-2023-3399: Insertion of Sensitive Information Into Sent Data in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-201
Published November 6, 2023
Last update November 20, 2025
View on NVD All CVEs

CVSS base score

8.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

An issue has been discovered in GitLab EE affecting all versions starting from 11.6 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. It was possible for an unauthorised project or group member to read the CI/CD variables using the custom project templates.

Key dates

02Disclosure timeline

November 6, 2023 CVE published
November 20, 2025 Record updated