GitLab CE/EE 19.x XSS via Content Editor (up to 19.3.2)
CVE-2026-19619 Published on September 16, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an unauthenticated user to execute arbitrary JavaScript in the context of a targeted user's session due to improper sanitization of pasted HTML content in the Content Editor.
Vulnerability Analysis
CVE-2026-19619 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small 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-2026-19619 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-19619
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Affected Versions
GitLab:- Version 19.0 and below 19.1.8 is affected.
- Version 19.2 and below 19.2.6 is affected.
- Version 19.3 and below 19.3.2 is affected.