CVE-2026-19619

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.

Affected

GitLab

CVSS v3.1 GITLAB

4.7 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.24% chance of exploitation in the next 30 days, 14th percentile

Published

2026-09-16

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3808840

Security advisories

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-2-released

References

• CVE Record
• NVD entry