Cross-site scripting in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-6073
Published: May 18, 2026
Vulnerability identifier: #VU131667
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-6073
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary JavaScript in other users' browsers.
The vulnerability exists due to improper input sanitization in Duo Agent output rendering when rendering agent output. A remote user can inject crafted script content to execute arbitrary JavaScript in other users' browsers.
User interaction is required to view the crafted content.
Affected software
Gitlab Community Edition
GitLab Enterprise Edition
GitLab Enterprise Edition
How to mitigate CVE-2026-6073
Install security update from vendor's website.
Gitlab Community Edition - addressed in versions 18.9.7, 18.10.6, 18.11.3
GitLab Enterprise Edition - addressed in versions 18.9.7, 18.10.6, 18.11.3
GitLab Enterprise Edition - addressed in versions 18.9.7, 18.10.6, 18.11.3