CVE-2026-1230

MEDIUM 4.1

Use of Incorrectly-Resolved Name or Reference in GitLab

CVSS Score

4.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-706
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Mar 11, 2026
Last Updated	Mar 11, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

GitLab / GitLab

1.0 < 18.7.6 18.8 < 18.8.6 18.9 < 18.9.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hackerone.com: https://hackerone.com/reports/3505165 gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/587002 about.gitlab.com: https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/

Credits

Thanks [st4nly0n](https://hackerone.com/st4nly0n) for reporting this vulnerability through our HackerOne bug bounty program