CVE-2026-6976

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to hide changes from merge request diff views due to improper input handling of file names.

CVSS v3 3.7 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/	Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/598165	Issue Tracking
https://hackerone.com/reports/3638136	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

History

11 Jun 2026, 17:34

Type	Values Removed	Values Added
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::* cpe:2.3:a:gitlab:gitlab:::::community:::*
First Time		Gitlab Gitlab gitlab
References	~~() https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ -~~	() https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ - Release Notes
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/598165 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/598165 - Issue Tracking
References	~~() https://hackerone.com/reports/3638136 -~~	() https://hackerone.com/reports/3638136 - Permissions Required

11 Jun 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-11 12:16

Updated : 2026-06-11 17:34

NVD link : CVE-2026-6976

Mitre link : CVE-2026-6976

CVE.ORG link : CVE-2026-6976

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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