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vuln-cve/data/2026/128xxx/CVE-2026-128123.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-128123",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-11-12T22:42:47.031Z",
"datePublished": "2026-11-13T19:54:05.381Z",
"dateUpdated": "2026-11-13T19:54:05.381Z"
},
"containers": {
"cna": {
"title": "SvelteKit: `@sveltejs/adapter-node` crashes when proxying certain requests via `fetch`",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-248",
"lang": "en",
"description": "CWE-248: Uncaught Exception",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/sveltejs/kit/security/advisories/GHSA-rqw3-x7hx-mm3p",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/sveltejs/kit/security/advisories/GHSA-rqw3-x7hx-mm3p"
},
{
"name": "https://github.com/sveltejs/kit/pull/17620",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sveltejs/kit/pull/17620"
},
{
"name": "https://github.com/sveltejs/kit/commit/04756a1f7a4f73e34f1934895340a46de84fc164",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sveltejs/kit/commit/04756a1f7a4f73e34f1934895340a46de84fc164"
},
{
"name": "https://github.com/sveltejs/kit/commit/0a2e58cbccdd46cac20aa5af4e2edf17e0da11dd",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sveltejs/kit/commit/0a2e58cbccdd46cac20aa5af4e2edf17e0da11dd"
},
{
"name": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-node@5.5.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-node@5.5.8"
},
{
"name": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-node@6.0.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sveltejs/kit/releases/tag/@sveltejs/adapter-node@6.0.1"
}
],
"affected": [
{
"vendor": "sveltejs",
"product": "kit",
"versions": [
{
"version": ">= 3.0.0-next.0, < 3.1.1",
"status": "affected"
},
{
"version": "< 2.70.4",
"status": "affected"
}
]
},
{
"vendor": "@sveltejs",
"product": "adapter-node",
"versions": [
{
"version": ">= 5.5.7, < 5.5.8",
"status": "affected"
},
{
"version": ">= 6.0.0-next.0, < 6.0.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-11-13T19:54:05.381Z"
},
"descriptions": [
{
"lang": "en",
"value": "SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From version 5.5.7 until versions 5.5.8 and 6.0.1, , @sveltejs/adapter-node can attempt to add a header to an immutable request in a context that causes the server to crash, denying service to any other requests routed to that server. This issue is fixed in 5.5.8 and 6.0.1."
}
],
"source": {
"advisory": "GHSA-rqw3-x7hx-mm3p",
"discovery": "UNKNOWN"
}
}
}
}