CVE-2026-0595

EUVD-2026-6217
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.9 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to add unauthorized email addresses to victim accounts through HTML injection in test case titles.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.3 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
GitLabCNA
7.3 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
13.9.0 ≤
𝑥
< 18.6.6
gitlabgitlab
13.9.0 ≤
𝑥
< 18.6.6
gitlabgitlab
18.7.0 ≤
𝑥
< 18.7.4
gitlabgitlab
18.7.0 ≤
𝑥
< 18.7.4
gitlabgitlab
18.8.0 ≤
𝑥
< 18.8.4
gitlabgitlab
18.8.0 ≤
𝑥
< 18.8.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gitlab
sid
vulnerable
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/
https://gitlab.com/gitlab-org/gitlab/-/issues/584975
https://hackerone.com/reports/3486862