🛡️ CVE-2025-67647
🔴 CVSS 9.1 — Critical ✅ No Known Exploit CWE-248 NVD
9.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.49.5, SvelteKit is vulnerable to a server side request forgery (SSRF) and denial of service (DoS) under certain conditions. From 2.44.0 through 2.49.4, the vulnerability results in a DoS when your app has at least one prerendered route (export const prerender = true). From 2.19.0 through 2.49.4, the vulnerability results in a DoS when your app has at least one prerendered route and you are using adapter-node without a configured ORIGIN environment variable, and you are not using a reverse proxy that implements Host header validation. This vulnerability is fixed in 2.49.5.

Details

Severity HIGH
CVSS Score 9.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE CWE-248
Public Exploit ✅ No
Source NVD
Published 2026-01-15
Updated 2026-06-02
Modified 2026-02-03

Affected Packages

Software From version Fixed in
@sveltejs/adapter-node — —
@sveltejs/kit — —
adapter-node 5.4.1 5.5.1
kit 2.19.0 2.49.5

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