Vulnerability record/PUBLISHED/Published Nov 6, 2023 12:08:54 UTC

CVE-2023-3399

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.

Base score8.5/ 10

SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityHigh

Attack vectorNetworkAV

Attack complexityLowAC

Privileges requiredLowPR

User interactionNoneUI

ScopeChangedS

Confidentiality impactHighC

Integrity impactLowI

Availability impactNoneA

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

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityGitLab

Last updatedOct 28, 2026 11:39:49 UTC

PublishedNov 6, 2023 12:08:54 UTC

ReservedJun 26, 2023 10:17:01 UTC

Credits

Thanks [theluci](https://hackerone.com/theluci) for reporting this vulnerability through our HackerOne bug bounty program