What is CVE-2026-1230?

CVE-2026-1230 is a medium-severity vulnerability in Gitlab, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 4.1/10. Published 2026-03-11.

How severe is CVE-2026-1230?

Medium severity. CVSS v3 base score is 4.1 out of 10.

Vulnerability in Gitlab

CVE-2026-1230

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.

EPSS: 0.002 (9.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N.

Affected products

Gitlab — versions 1.0, 18.8, 18.9

Weakness classification (CWE)

CWE-706 — Use of Incorrectly-Resolved Name or Reference

References

cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
cve@gitlab.com (Broken Link)
cve@gitlab.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-1230?: CVE-2026-1230 is a medium-severity vulnerability in Gitlab, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 4.1/10. Published 2026-03-11.
How severe is CVE-2026-1230?: Medium severity. CVSS v3 base score is 4.1 out of 10.