CVE
CVE-2026-89078
Double Free in GitLab
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.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.9
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
C
H
U
-
Related Resources
No items found.
References
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/, https://gitlab.com/gitlab-org/gitlab/-/work_items/628577, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89078.json, https://nvd.nist.gov/vuln/detail/CVE-2026-89078, https://hackerone.com/reports/4019059, git://git@gitlab.com:gitlab-org/gitlab.git