CVE-2026-100755

EUVD-2026-98211
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain deployment configurations, could have allowed an authenticated user to poison cached page content served to other users due to improper cache key construction.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.6 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 0.28%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
16.2.0 ≤
𝑥
< 19.2.8
gitlabgitlab
19.3.0 ≤
𝑥
< 19.3.5
gitlabgitlab
19.4.0 ≤
𝑥
< 19.4.2
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gitlab
jammy
dne
noble
dne
resolute
dne
xenial
ignored
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/627507