CVE-2024-23641: Svelte Adapter-Node

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

SvelteKit is a web development kit. In SvelteKit 2, sending a GET request with a body eg `{}` to a built and previewed/hosted sveltekit app throws `Request with GET/HEAD method cannot have body.` and crashes the preview/hosting. After this happens, one must manually restart the app. `TRACE` requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected. `@sveltejs/adapter-node` versions 2.1.2, 3.0.3, and 4.0.1 and `@sveltejs/kit` version 2.4.3 contain a patch for this issue.

Affected products

• Svelte Adapter-Node: from 2.0.0, before 2.1.2 (fixed in 2.1.2); from 3.0.0, before 3.0.3 (fixed in 3.0.3); version 4.0.0 only
• Svelte Kit: from 2.0.0, before 2.4.3 (fixed in 2.4.3)

Published 2024-01-24. Last modified 2026-06-17.