CVE-2024-23641

highpriority · track · 30EPSS 0.008 · 55 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.76% (55th) EPSS

CVSS 7.5 · high

Is it mine?

13 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security-advisories@github.comexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20US

affected products (13)

Products and version ranges known to be affected.

sveltejs kitall versionsenisa_euvdEU
sveltejs kit≤ = 4.0.0enisa_euvdEU
sveltejs kit2.0.0, → 2.1.2enisa_euvdEU
sveltejs kit2.0.0, → 2.4.3enisa_euvdEU
sveltejs kit3.0.0, → 3.0.3enisa_euvdEU
svelte adapter-node2.0.0 → 2.1.2nvdUScpe:2.3:a:svelte:adapter-node:*:*:*:*:*:*:*:*
svelte adapter-node3.0.0 → 3.0.3nvdUScpe:2.3:a:svelte:adapter-node:*:*:*:*:*:*:*:*
svelte adapter-node= 4.0.0nvdUScpe:2.3:a:svelte:adapter-node:*:*:*:*:*:*:*:*
svelte kit2.0.0 → 2.4.3nvdUScpe:2.3:a:svelte:kit:*:*:*:*:*:*:*:*
npm @sveltejs/adapter-node2.0.0 → 2.1.2osvUSpkg:npm/%40sveltejs/adapter-node
npm @sveltejs/adapter-node3.0.0 → 3.0.3osvUSpkg:npm/%40sveltejs/adapter-node
npm @sveltejs/adapter-node4.0.0 → 4.0.1osvUSpkg:npm/%40sveltejs/adapter-node
npm @sveltejs/kit2.0.0 → 2.4.3osvUSpkg:npm/%40sveltejs/kit

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-g5m6-hxpp-fc49Sending a GET or HEAD request with a body crashes SvelteKit2024-01-24ghsa · osvUS
### Summary 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. ``` node:internal/deps/undici/undici:6066 throw new TypeError("Request with GET/HEAD method cannot have body."); ^ TypeError: Request with GET/HEAD method cannot have body. at new Request (node:internal/deps/undici/undici:6066:17) at getRequest (file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/node/index.js:107:9) at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:181:26 at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7) at next (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44739:5) at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:172:6 at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7) at next (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44739:5) at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:211:27 at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7) Node.js v20.11.0 ``` `TRACE` requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected.  ### PoC  First do a fresh install of SvelteKit 2 with the example app. Typescript. 1. `npm run build` 2. `npm run preview` 3. Go to http://localhost:4173 (works) 4. curl -X GET -d "{}" http://localhost:4173/bye 5. Application crashes and http://localhost:4173 is down ### Impact  Denial of Service for apps using `adapter-node`

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2024-01-24modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

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