GitLab EE XSS: Authenticated Users Execute JS before v18.9.7, v18.10.6, v18.11.3
CVE-2026-6073 Published on May 14, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to execute arbitrary JavaScript in other users' browsers due to improper input sanitization.
Vulnerability Analysis
CVE-2026-6073 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-6073 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-6073
Want to know whenever a new CVE is published for GitLab? stack.watch will email you.
Affected Versions
GitLab:- Version 18.7 and below 18.9.7 is affected.
- Version 18.10 and below 18.10.6 is affected.
- Version 18.11 and below 18.11.3 is affected.