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CVE-2026-6976 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/	[email protected]	Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/598165	[email protected]	Issue Tracking
https://hackerone.com/reports/3638136	[email protected]	Permissions Required

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-639	Authorization Bypass Through User-Controlled Key	[email protected]

Affected Products

Product	Versions
gitlab gitlab	>= 15.9.0, < 18.10.8 >= 18.11.0, < 18.11.5 >= 19.0.0, < 19.0.2
CPE cpe:2.3:a:gitlab:gitlab:::::community:::* cpe:2.3:a:gitlab:gitlab:::::enterprise:::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 11, 2026	Initial Analysis	[email protected]
Jun 11, 2026	New CVE Received	[email protected]