Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to spoof merge request authorship and attribute content to arbitrary existing users on the target instance due to improper reliance on ephemeral cache state during Direct Transfer imports.
Affected products
gitlab: gitlab
References2
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-re… Release NotesVendor Advisory
- gitlab.com/gitlab-org/gitlab/-/work_items/628379 Broken Link
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - EPSS — exploit probability
- 0% percentile: 1 · as of 9 November 2026
- CWE
- CWE-348
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.