Vulnerability · Published Apr 8, 2026 · Assigned by GitLab
CVE-2026-4332Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Medium 5.4
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 22% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.3%top 78.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that, in customizable analytics dashboards, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browsers due to improper input sanitization.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/593853
- HackerOne Bug Bounty Report #3600345 technical-description, exploit, permissions-required
- https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/