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CVE-2026-27119

CVE-2026-27119 · Svelte affected by XSS in SSR `<option>` element

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.1 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • svelte

    Versions
    • >= 5.39.3, < 5.51.5: Affected

    No fix published

  • svelte npm

    Affected ranges
    • SEMVER: ≥ 5.39.3, < 5.51.5

    Update to 5.51.5

Original sources

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