CVE-2026-1101

EUVD-2026-20791
GitLab has remediated an issue in GitLab EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to cause denial of service to the GitLab instance due to improper input validation in GraphQL queries.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitLabCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
gitlabgitlab
18.2 ≤
𝑥
< 18.8.9
CNA
gitlabgitlab
18.9 ≤
𝑥
< 18.9.5
CNA
gitlabgitlab
18.10 ≤
𝑥
< 18.10.3
CNA
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/586488
https://hackerone.com/reports/3460228