CVE-2026-1660

EUVD-2026-24959
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.3 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to cause denial of service when importing issues due to improper input validation.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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: 33.41%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
12.3.0 ≤
𝑥
< 18.9.6
gitlabgitlab
12.3.0 ≤
𝑥
< 18.9.6
gitlabgitlab
18.10.0 ≤
𝑥
< 18.10.4
gitlabgitlab
18.10.0 ≤
𝑥
< 18.10.4
gitlabgitlab
18.11.0
gitlabgitlab
18.11.0
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gitlab
jammy
dne
noble
dne
questing
dne
resolute
dne
xenial
ignored
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/588200
https://hackerone.com/reports/3518743