CVE-2026-6821

EUVD-2026-57440
GitLab has remediated an issue in GitLab EE affecting all versions from 12.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user to bypass IP-based access restrictions and read limited merge request information from a private project due to missing authorization checks in a merge requests API endpoint.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.13%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
12.0.0 ≤
𝑥
< 19.0.6
gitlabgitlab
19.1.0 ≤
𝑥
< 19.1.4
gitlabgitlab
19.2.0 ≤
𝑥
< 19.2.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/597702
https://hackerone.com/reports/3674254