Cross-site scripting in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-19619
Published: September 11, 2026
Vulnerability identifier: #VU149016
CSH Severity: Medium
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-19619
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary JavaScript in the context of a targeted user\'s session.
The vulnerability exists due to improper sanitization of pasted HTML content in the Content Editor when rendering pasted HTML content. A remote attacker can provide crafted HTML content to execute arbitrary JavaScript in the context of a targeted user\'s session.
User interaction is required.
Affected software
Gitlab Community Edition
GitLab Enterprise Edition
GitLab Enterprise Edition
How to mitigate CVE-2026-19619
Install security update from vendor's website.
Gitlab Community Edition - addressed in versions 19.1.8, 19.2.6, 19.3.2
GitLab Enterprise Edition - addressed in versions 19.1.8, 19.2.6, 19.3.2
GitLab Enterprise Edition - addressed in versions 19.1.8, 19.2.6, 19.3.2