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

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HIGH

Insertion of Sensitive Information Into Sent Data in GitLab

Published Nov 6, 2023

8.5

HIGH

CVSS 3.1

EPSS 0.45%

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.

Affected products

Vendor GitLab Product GitLab Default
unaffected
- Version
  11.6
  Status
  affected
  Constraints
  <16.3.6
- Version
  16.4
  Status
  affected
  Constraints
  <16.4.2
- Version
  16.5
  Status
  affected
  Constraints
  <16.5.1

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

GitLab

unaffected

Version	Status	Constraints
11.6	affected	<16.3.6
16.4	affected	<16.4.2
16.5	affected	<16.5.1

Remediation

Vendor solution

Upgrade to versions 16.5.1, 16.4.2, 16.3.6 or above.

Weaknesses (1)

CWE-201

References (2)

https://gitlab.com/gitlab-org/gitlab/-/issues/416244
issue-trackingBroken Link
https://hackerone.com/reports/2021616
technical-descriptionexploitpermissions-requiredPermissions Required

Link	Providers	Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/416244		issue-trackingBroken Link
https://hackerone.com/reports/2021616		technical-descriptionexploitpermissions-requiredPermissions Required

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner GitLab

Published Nov 6, 2023

Updated Nov 20, 2025

Reserved Jun 26, 2023

Link CVE-2023-3399

CISA Vulnrichment

Updated Jul 24, 2024

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2023-3399

Red Hat

Severity n/a

Public date n/a

Links CVE-2023-3399