Vulnerability · Published Mar 11, 2026 · Assigned by GitLab
CVE-2026-1230Use of Incorrectly-Resolved Name or Reference in GitLab
Medium 4.1
In plain English
A medium-severity security flaw in GitLab from GitLab. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Severity (CVSS 3.1)4.1Medium
Exploit odds (30 days)0.2%top 86.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-706 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
References
- HackerOne Bug Bounty Report #3505165 technical-description, exploit, permissions-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/