CVE-2026-9807CWE-863broken-access-control

CVE-2026-9807

Medium · published May 28, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
25.0
In the wild
Unconfirmed
What it is

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

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
0.00331 · 25.0th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-05-28T13:16Z
Affected products (6)
ProductVersionsFixed in
gitlab/gitlab≥ 18.9.0, < 18.10.718.10.7
gitlab/gitlab≥ 18.9.0, < 18.10.718.10.7
gitlab/gitlab≥ 18.11.0, < 18.11.418.11.4
gitlab/gitlab≥ 18.11.0, < 18.11.418.11.4
gitlab/gitlaball versions—
gitlab/gitlaball versions—
References (3)
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/ · [email protected]https://gitlab.com/gitlab-org/gitlab/-/work_items/590694 · [email protected]https://hackerone.com/reports/3554993 · [email protected]
EPSS history
Timeline
  • 28 MAY 07:34Z
    Incorrect Authorization in GitLab
    cvelistv5