Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to perform unauthorized operations by submitting GraphQL mutations through the GLQL API endpoint.
References (3)
Core 3
Core References
Release Notes, Vendor Advisory
https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/
Broken Link, Issue Tracking issue-tracking
permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/583961
Permissions Required technical-description
exploit
permissions-required
https://hackerone.com/reports/3451435
Scores
CVSS v3
3.7
EPSS
0.0002
EPSS Percentile
3.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (1)
gitlab/gitlab
18.6.0 - 18.6.6 (2 CPE variants)
Published
Feb 11, 2026
Tracked Since
Feb 18, 2026