CVE-2026-60008
Low
Description
Gitea's Jupyter notebook renderer inserts the notebook's language_info.name metadata into a CSS class attribute while disabling sanitization and rendering directly in the main document without an iframe sandbox. A malicious repository notebook can supply multiple CSS classes that create a viewport-covering overlay and intercept clicks when another user views it. The reported impact is UI redress; script execution was not demonstrated.
SeverityLow
CVSS3.5
Exploit probability—
Product
Gitea
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-79Cross-site scripting (XSS)CWE-1021CWE-1021
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Gitea Gitea | 1.27.0 ≤ v ≤ 1.27.1 | — |
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