CVE-2026-27119

Description

svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an 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 Platforms

Weakness Type

CWE-79

References

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