CVE-2026-89078

EUVD-2026-85736
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to a double free issue when parsing a specially crafted regular expression in a CI/CD configuration.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitLabCNA
9.9 CRITICAL
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.61%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
gitlabgitlab
19.2 ≤
𝑥
< 19.2.7
CNA
gitlabgitlab
19.3 ≤
𝑥
< 19.3.3
CNA
gitlabgitlab
19.4 ≤
𝑥
< 19.4.1
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/628577
https://hackerone.com/reports/4019059