CVE-2025-67647

HIGH EPSS 36.9%
Published Jan 15, 20265mo ago · Modified Jun 17, 20262w ago
8.4 CVSS 4.0
High
Find Similar
Published Jan 15, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.4
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
36.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-248
CWE-918 Server-Side Request Forgery (SSRF) Validation

Affected Products 2

VendorProductVersionRange
svelteadapter-node*≥5.4.1  –  <5.5.1
sveltekit*≥2.19.0  –  <2.49.5

References 2

  • github.com https://github.com/sveltejs/kit/commit/d9ae9b00b14f5574d109f3fd548f960594346226
    Patch
  • github.com https://github.com/sveltejs/kit/security/advisories/GHSA-j62c-4x62-9r35
    Vendor Advisory

Remediation

  • github.com https://github.com/sveltejs/kit/commit/d9ae9b00b14f5574d109f3fd548f960594346226
    Patch