{"id":"CVE-2024-23641","aliases":["EUVD-2024-0352","GHSA-g5m6-hxpp-fc49"],"status":"published","title":"Sending a GET or HEAD request with a body crashes SvelteKit","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00764,"percentile":0.55724,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2024-01-24T14:22:22Z","modified":"2026-10-28T02:30:38Z","fixes":[{"ecosystem":"npm","package":"@sveltejs/kit","fixed_in":["2.4.3"],"sources":["ghsa","osv"]},{"ecosystem":"npm","package":"@sveltejs/adapter-node","fixed_in":["2.1.2","3.0.3","4.0.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@sveltejs/kit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.4.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@sveltejs/adapter-node","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@sveltejs/adapter-node","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.0.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@sveltejs/adapter-node","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"last_affected":"4.0.0"},{"fixed":"4.0.1"}]}],"versions":["4.0.0"]},{"source":"osv","ecosystem":"npm","package":"@sveltejs/kit","ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.4.3"}]}]},{"source":"osv","ecosystem":"npm","package":"@sveltejs/adapter-node","ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.1.2"}]}]},{"source":"osv","ecosystem":"npm","package":"@sveltejs/adapter-node","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.0.3"}]}]},{"source":"osv","ecosystem":"npm","package":"@sveltejs/adapter-node","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.0.1"}]}],"versions":["4.0.0"]}],"products":[{"vendor":"svelte","product":"adapter-node"},{"vendor":"svelte","product":"kit"},{"vendor":"sveltejs","product":"kit"}],"references":[{"url":"https://github.com/sveltejs/kit/security/advisories/GHSA-g5m6-hxpp-fc49","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://github.com/sveltejs/kit/commit/af34142631c876a7eb62ff81f71e8a3f90dafee9","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23641","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-g5m6-hxpp-fc49"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23641.json","tags":["advisory"]},{"url":"https://github.com/sveltejs/kit","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-23641","title":"Sending a GET or HEAD request with a body crashes SvelteKit","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.","status":"published","published":"2024-01-24T16:56:32.392Z","modified":"2024-11-13T15:09:39.781Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:34:05.444281Z"}],"euvd":[{"id":"EUVD-2024-0352","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.","status":"published","published":"2024-01-24T16:56:32Z","modified":"2024-11-13T15:09:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:05:02.514936Z"}],"ghsa":[{"id":"GHSA-g5m6-hxpp-fc49","title":"Sending a GET or HEAD request with a body crashes SvelteKit","description":"### Summary\nIn 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.\n\n```\nnode:internal/deps/undici/undici:6066\n          throw new TypeError(\"Request with GET/HEAD method cannot have body.\");\n                ^\n\nTypeError: Request with GET/HEAD method cannot have body.\n    at new Request (node:internal/deps/undici/undici:6066:17)\n    at getRequest (file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/node/index.js:107:9)\n    at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:181:26\n    at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7)\n    at next (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44739:5)\n    at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:172:6\n    at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7)\n    at next (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44739:5)\n    at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:211:27\n    at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7)\n\nNode.js v20.11.0\n```\n\n`TRACE` requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected.\n\n\u003c!--\n### Details\n_Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._\n--\u003e\n### PoC\n\u003c!-- _Complete instructions, including specific configuration details, to reproduce the vulnerability._ --\u003e\nFirst do a fresh install of SvelteKit 2 with the example app. Typescript.\n\n1. `npm run build`\n2. `npm run preview`\n3. Go to http://localhost:4173 (works)\n4. curl -X GET -d \"{}\" http://localhost:4173/bye\n5. Application crashes and http://localhost:4173 is down\n\n### Impact\n\u003c!-- _What kind of vulnerability is it? Who is impacted?_ --\u003e\nDenial of Service for apps using `adapter-node`","status":"published","published":"2024-01-24T14:22:22Z","modified":"2026-10-18T14:58:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:41:32.483482Z"}],"nvd":[{"id":"CVE-2024-23641","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.","status":"published","published":"2024-01-24T17:15:08.6Z","modified":"2026-06-17T07:13:17.32Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:09:32.147098Z"}],"osv":[{"id":"CVE-2024-23641","title":"Sending a GET or HEAD request with a body crashes SvelteKit","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.","status":"published","published":"2024-01-24T16:56:32.392Z","modified":"2026-10-28T02:30:38.965946201Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:44:38.897406Z"},{"id":"GHSA-g5m6-hxpp-fc49","title":"Sending a GET or HEAD request with a body crashes SvelteKit","description":"### Summary\nIn 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.\n\n```\nnode:internal/deps/undici/undici:6066\n          throw new TypeError(\"Request with GET/HEAD method cannot have body.\");\n                ^\n\nTypeError: Request with GET/HEAD method cannot have body.\n    at new Request (node:internal/deps/undici/undici:6066:17)\n    at getRequest (file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/node/index.js:107:9)\n    at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:181:26\n    at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7)\n    at next (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44739:5)\n    at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:172:6\n    at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7)\n    at next (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44739:5)\n    at file:///C:/Users/admin/Desktop/reproduction/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:211:27\n    at call (file:///C:/Users/admin/Desktop/reproduction/node_modules/vite/dist/node/chunks/dep-9A4-l-43.js:44795:7)\n\nNode.js v20.11.0\n```\n\n`TRACE` requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected.\n\n\u003c!--\n### Details\n_Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._\n--\u003e\n### PoC\n\u003c!-- _Complete instructions, including specific configuration details, to reproduce the vulnerability._ --\u003e\nFirst do a fresh install of SvelteKit 2 with the example app. Typescript.\n\n1. `npm run build`\n2. `npm run preview`\n3. Go to http://localhost:4173 (works)\n4. curl -X GET -d \"{}\" http://localhost:4173/bye\n5. Application crashes and http://localhost:4173 is down\n\n### Impact\n\u003c!-- _What kind of vulnerability is it? Who is impacted?_ --\u003e\nDenial of Service for apps using `adapter-node`","status":"published","published":"2024-01-24T14:22:22Z","modified":"2026-09-10T03:50:00.238557856Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:46:47.472172Z"}]}}