Sending a GET or HEAD request with a body crashes SvelteKit - @sveltejs/adapter-node

Description

In SvelteKit 2 sending a GET request with a body eg {} to a SvelteKit app in preview or with adapter-node throws Request with GET/HEAD method cannot have body. and crashes the app.

TRACE requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected.

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Recommendation

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

• Affected version(s): **= 4.0.0

  >= 3.0.0, < 3.0.3

  >= 2.0.0, < 2.1.2**

• Patched version(s): **4.0.1

  3.0.3

  2.1.2**

References

• GHSA-g5m6-hxpp-fc49
• CVE-2024-23641
• CWE-20
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Sending a GET or HEAD request with a body crashes SvelteKit - CVE-2024-23641
• SvelteKit is vulnerable to denial of service and possible SSRF when using prerendering - @sveltejs/adapter-node - CVE-2025-67647
• @sveltejs/adapter-node has a BODY_SIZE_LIMIT bypass - CVE-2026-40073
• Server crashes on invalid Cloud Function or Cloud Job name - CVE-2024-29027

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Tags:

npm

@sveltejs/adapter-node