CVE-2023-3399 | BDVDB-2026-216064 Detail

GitLabGitLab

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

CWE-201 Insertion of Sensitive Information Into Sent Data

References#

Exploit#

https://hackerone.com/reports/2021616

History#

Version 12023-11-06Record published in the CVE List.
Version 22026-10-28Most recent update recorded in the CVE List.

Published

Published: 2023-11-06
Last modified: 2026-10-28

Vendor information

Vendor: GitLab
Product: GitLab

All GitLab vulnerabilities

Score

8.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 45.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 11.6 and < 16.3.6
Fixed
16.3.6
Vulnerable
>= 16.4 and < 16.4.2
Fixed
16.4.2
Vulnerable
>= 16.5 and < 16.5.1
Fixed
16.5.1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.5 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).