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CVE-2026-27119

Published: Feb 20, 2026

Modified: Feb 23, 2026

PUBLISHED

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.

Vendor	Product	Versions
sveltejs	svelte	affected `>= 5.39.3, < 5.51.5`

Weaknesses (CWE)

References

https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc

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