CVE-2026-92883
High
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output.
SeverityHigh
CVSS8.7
Exploit probability—
Product
Gitlab
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- gitlab gitlab19.2.8, 19.3.5, 19.4.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitlab gitlab | 19.1.0 ≤ v < 19.2.8, 19.3.0 ≤ v < 19.3.5, 19.4.0 ≤ v < 19.4.2 | 19.2.8, 19.3.5, 19.4.2 |
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