CVE-2026-6335
Medium
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Gitlab
PublishedMay 14, 2026
First seenMay 14, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- gitlab gitlab18.11.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitlab gitlab | 18.11.0 ≤ v < 18.11.3 | 18.11.3 |
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