CVE-2026-18433CWE-863broken-access-control

CVE-2026-18433

Medium · published August 13, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
31.8
In the wild
Unconfirmed
What it is

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.4 and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user to read policy configuration belonging to a namespace they were not authorized to access, due to incorrect authorization checks in a GraphQL query.

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
0.00389 · 31.8th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-08-13T00:17Z
Affected products (2)
ProductVersionsFixed in
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/607556 · [email protected]https://hackerone.com/reports/3776182 · [email protected]
EPSS history
Timeline
  • 12 AUG 19:04Z
    Incorrect Authorization in GitLab
    cvelistv5