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.
History

Wed, 15 Apr 2026 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:svelte:kit:*:*:*:*:*:node.js:*:*
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Mon, 13 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 13 Apr 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Svelte
Svelte kit
Vendors & Products Svelte
Svelte kit

Fri, 10 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
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.
Title SvelteKit has a BODY_SIZE_LIMIT bypass in @sveltejs/adapter-node
Weaknesses CWE-770
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-10T16:24:39.987Z

Updated: 2026-04-13T15:36:57.412Z

Reserved: 2026-04-09T00:39:12.204Z

Link: CVE-2026-40073

cve-icon Vulnrichment

Updated: 2026-04-13T15:33:26.150Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-10T17:17:12.357

Modified: 2026-04-15T18:43:03.123

Link: CVE-2026-40073

cve-icon Redhat

No data.