CVE-2026-40074
SvelteKit's invalidated redirect in handle hook causes Denial-of-Service
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
12th
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.
| CWE | CWE-755 |
| Vendor | sveltejs |
| Product | kit |
| Published | Apr 10, 2026 |
| Last Updated | Apr 14, 2026 |
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Affected Versions
sveltejs / kit
< 2.57.1