CVE-2026-1092

EUVD-2026-20789
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service due to improper input validation of JSON payloads.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitLabCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/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
12.10 ≤
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/586479
https://hackerone.com/reports/3487030