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CVE-2026-1230 Details

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 1.0 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to cause repository downloads to contain different code than displayed in the web interface due to incorrect validation of branch references under certain circumstances.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CNA: [email protected]CVSS-B:4.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/	[email protected]	Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/587002	[email protected]	Broken Link
https://hackerone.com/reports/3505165	[email protected]	Permissions Required

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-706	Use of Incorrectly-Resolved Name or Reference	[email protected]

Affected Products

Product	Versions
gitlab gitlab	>= 1.0.0, < 18.7.6 >= 18.8.0, < 18.8.6 >= 18.9.0, < 18.9.2
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
Mar 17, 2026	Initial Analysis	[email protected]
Mar 11, 2026	New CVE Received	[email protected]