Vulnerability · Published Sep 16, 2026 · Assigned by GitLab
CVE-2026-19619Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Medium 4.7
In plain English
A medium-severity cross-site scripting in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.3%top 76.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/612792
- HackerOne Bug Bounty Report #3808840 technical-description, exploit, permissions-required
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-2-released/