Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an attacker to execute arbitrary JavaScript in another user's browser via a crafted URL, due to improper sanitization of user-controlled input.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 14.0.0, < 19.0.5 |
Related Weaknesses (CWE)
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/Release NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/work_items/591274Broken Link
- https://hackerone.com/reports/3539833Permissions Required
FAQ
What is CVE-2026-3093?
CVE-2026-3093 is a vulnerability with a CVSS score of 4.7 (MEDIUM). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an attacker t...
How severe is CVE-2026-3093?
CVE-2026-3093 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3093?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.