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OpenAdvisories
High · 8.2 CVE-2026-40073 EUVD-2026-21502GHSA-2crg-3p73-43xp

SvelteKit has a BODY_SIZE_LIMIT bypass in @sveltejs/adapter-node

Published Apr 10, 2026 · Updated Apr 13, 2026 · Assigned by GitHub_M

Description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, under certain circumstances, requests could bypass the BODY_SIZE_LIMIT on SvelteKit applications running with adapter-node. This bypass does not affect body size limits at other layers of the application stack, so limits enforced in the WAF, gateway, or at the platform level are unaffected. This vulnerability is fixed in 2.57.1.

Affected products

VendorProductAffectedFixed
sveltejs kit < 2.57.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @sveltejs/kit < 2.57.1 2.57.1 GHSA-2crg-3p73-43xp

References