XSS in GitLab
CVE-2026-3093
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Gitlab — versions 14.0, 19.2, 19.1
Weakness classification (CWE)
References
- cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
- cve@gitlab.com (Broken Link)
- cve@gitlab.com (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-3093?
- CVE-2026-3093 is a medium-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-07-29.
- How severe is CVE-2026-3093?
- Medium severity. CVSS v3 base score is 4.7 out of 10.