CVE-2026-12635

EUVD-2026-39168
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitLabCNA
0 NONE
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
gitlabgitlab
8.3 ≤
𝑥
< 18.11.6
CNA
gitlabgitlab
19.0 ≤
𝑥
< 19.0.3
CNA
gitlabgitlab
19.1 ≤
𝑥
< 19.1.1
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/594321