CVE-2024-23641

Sending a GET or HEAD request with a body crashes SvelteKit

HIGH

7.5

CVSS Score

Published: January 24, 2024 at 04:56 PM UTC

Updated: June 17, 2026 at 07:13 AM UTC

3 products affected across 2 vendorsKitAdapter NodeKit

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Severity

HIGH7.5

Exploit prediction

EPSS 0.8%

SSVC

PoC

Description

SvelteKit is a web development kit. In SvelteKit 2, sending a GET request with a body eg `{}` to a built and previewed/hosted sveltekit app throws `Request with GET/HEAD method cannot have body.` and crashes the preview/hosting. After this happens, one must manually restart the app. `TRACE` requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected. `@sveltejs/adapter-node` versions 2.1.2, 3.0.3, and 4.0.1 and `@sveltejs/kit` version 2.4.3 contain a patch for this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Adapter Node · Sveltenpm

95%

2.0.0 ≤ v < 2.1.23.0.0 ≤ v < 3.0.34.0.0

Affected range stops below 2.1.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.0.3, so it looks safe — our inference, not a vendor statement

Kit · Sveltenpm

95%

2.0.0 ≤ v < 2.4.3

Affected range stops below 2.4.3, so it looks safe — our inference, not a vendor statement

Kit · Sveltejs

60%

v < 2.1.2v < 2.4.3v < 3.0.3= 4.0.0

Affected range stops below 2.1.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.4.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.0.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPatch

Source: [email protected]

https://github.com/sveltejs/kit/commit/af34142631c876a7eb62ff81f71e8a3f90dafee9

x_refsource_CONFIRMExploitVendor Advisory

Source: [email protected]

https://github.com/sveltejs/kit/security/advisories/GHSA-g5m6-hxpp-fc49

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-20NVD-CWE-noinfo

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