CVE-2026-15975

EUVD-2026-50476
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.8 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an unauthenticated user to cause a denial of service due to insufficient resource throttling when processing merge request discussions.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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: 39.47%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
11.8.0 ≤
𝑥
< 19.0.5
gitlabgitlab
11.8.0 ≤
𝑥
< 19.0.5
gitlabgitlab
19.1.0 ≤
𝑥
< 19.1.3
gitlabgitlab
19.1.0 ≤
𝑥
< 19.1.3
gitlabgitlab
19.2.0
gitlabgitlab
19.2.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/601420