CVE-2026-1230

Use of Incorrectly-Resolved Name or Reference in GitLab

State: Published
Severity: 4.1 Medium
Published: Mar 11, 2026
Updated: Mar 11, 2026
Reserved: Jan 20, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	4.1 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N	GitLab

Weaknesses

CWE-706 Use of Incorrectly-Resolved Name or Reference

Affected Products

Product	Versions
GitLabGitLab	1.0 to before 18.7.6Affected 18.8 to before 18.8.6Affected 18.9 to before 18.9.2Affected

References

HackerOne Bug Bounty Report #3505165technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/587002
https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/

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