CVE-2025-67647CRITICAL 9.1EPSS p36.7%
CVE-2025-67647CVE-2025-67647
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.
Scoring
| CVSS 3.1 | 9.1 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| EPSS | 0.47% probability of exploitation · percentile 36.7% · 2026-06-18T12:00:27Z |
| Published | 2026-01-15 |
| Last modified | 2026-01-21 |
Underlying weaknesses· 2
References
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Uncaught Exceptioncwe-248 | 0% | live |
| Weakness | Server-Side Request Forgery (SSRF)cwe-918 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.