Server-side Request Forgery (SSRF) Affecting @sveltejs/adapter-node package, versions >=5.2.15 <5.5.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Jan 2026
- disclosed15 Jan 2026
- creditAllam Rachid, Allam Yasser, d-xuan
Introduced: 15 Jan 2026
CVE-2025-67647 (opens in a new tab)How to fix?
Upgrade @sveltejs/adapter-node to version 5.5.1 or higher.
Overview
@sveltejs/adapter-node is an Adapter for SvelteKit apps that generates a standalone Node server
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) due to the improper decoding of protocol headers in resolved path. An attacker can cause the server process to terminate or access internal services by sending crafted requests, potentially leading to unauthorized access to internal resources or cache poisoning attacks.
Note:
This is only exploitable if at least one prerendered route is present, and for accessing internal services, the application must use the node adapter without a configured ORIGIN environment variable and lack a reverse proxy with Host header validation.