CVE-2026-27119
Svelte affected by XSS in SSR `<option>` element
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an <option> element does not properly escape its content, potentially allowing HTML injection in the SSR output. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5.
| CWE | CWE-79 |
| Vendor | sveltejs |
| Product | svelte |
| Published | Feb 20, 2026 |
| Last Updated | Feb 23, 2026 |
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Affected Versions
sveltejs / svelte
>= 5.39.3, < 5.51.5