CVE-2026-40074

Description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, redirect, when called from inside the handle server hook with a location parameter containing characters that are invalid in a HTTP header, will cause an unhandled TypeError. This could result in DoS on some platforms, especially if the location passed to redirect contains unsanitized user input. This vulnerability is fixed in 2.57.1.

References

https://github.com/sveltejs/kit/security/advisories/GHSA-3f6h-2hrp-w5wx

https://github.com/sveltejs/kit/releases/tag/@sveltejs/[email protected]

https://github.com/sveltejs/kit/commit/10d7b44425c3d9da642eecce373d0c6ef83b4fcd

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4