Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5 before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized project access by exploiting the access request approval workflow.
References (3)
Core 3
Core References
Broken Link issue-tracking
permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/551267
Permissions Required technical-description
exploit
permissions-required
https://hackerone.com/reports/3209641
Release Notes, Vendor Advisory
https://about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-1-released/
Scores
CVSS v3
2.7
EPSS
0.0002
EPSS Percentile
5.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-840
Status
published
Products (2)
gitlab/gitlab
18.5.0
gitlab/gitlab
18.4.0 - 18.4.3
Published
Oct 27, 2025
Tracked Since
Feb 18, 2026