CVE-2026-6821CWE-862broken-access-control

CVE-2026-6821

Medium · published August 13, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
28.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00359 · 28.5th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-13T00:17Z
Affected products (3)
ProductVersionsFixed in
gitlab/gitlab≥ 12.0.0, < 19.0.619.0.6
gitlab/gitlab≥ 19.1.0, < 19.1.419.1.4
gitlab/gitlab≥ 19.2.0, < 19.2.219.2.2
References (3)
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/ · [email protected]https://gitlab.com/gitlab-org/gitlab/-/work_items/597702 · [email protected]https://hackerone.com/reports/3674254 · [email protected]
EPSS history
Timeline
  • 12 AUG 19:05Z
    Missing Authorization in GitLab
    cvelistv5