What is CVE-2026-19619?

CVE-2026-19619 is a medium-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-09-16.

How severe is CVE-2026-19619?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in GitLab

CVE-2026-19619

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 class: XSS (Cross-Site Scripting)

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

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@gitlab.com
cve@gitlab.com (technical-description, permissions-required, exploit)
cve@gitlab.com

Frequently asked questions

What is CVE-2026-19619?: CVE-2026-19619 is a medium-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-09-16.
How severe is CVE-2026-19619?: Medium severity. CVSS v3 base score is 4.7 out of 10.