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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-27119

Svelte affected by XSS in SSR `<option>` element

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

sveltejs svelte

  • >= 5.39.3, < 5.51.5affected

References