SvelteKit is vulnerable to denial of service and possible SSRF when using prerendering (GHSA-j62c-4x62-9r35)

Description

Versions of SvelteKit are vulnerable to a server side request forgery (SSRF) and denial of service (DoS) under certain conditions.

Recommendation

Update the @sveltejs/adapter-node package to the latest compatible version. Followings are version details:

• Affected version(s): >= 5.4.1, <= 5.5.0
• Patched version(s): 5.5.1

References

• GHSA-j62c-4x62-9r35
• CVE-2025-67647
• CWE-248
• CWE-400
• CWE-918
• CAPEC-310
• OWASP 2021-A10
• OWASP 2021-A6

Related Issues

• SvelteKit is vulnerable to denial of service and possible SSRF when using prerendering - CVE-2025-67647
• axios Requests Vulnerable To Possible SSRF and Credential Leakage via Absolute URL - CVE-2025-27152
• Signal K Server Vulnerable to Denial of Service via Unrestricted Access Request Flooding - CVE-2025-68272
• html-parse-stringify and html-parse-stringify2 vulnerable to Regular expression denial of service (ReDoS) (GHSA-545q-3fg6-48m7) - CVE-2021-23346

Tags:

npm

@sveltejs/adapter-node