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vuln-cve/data/2026/42xxx/CVE-2026-42342.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42342",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-26T13:26:14.514Z",
"datePublished": "2026-06-02T18:23:02.765Z",
"dateUpdated": "2026-06-03T13:52:43.400Z"
},
"containers": {
"cna": {
"title": "React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"lang": "en",
"description": "CWE-400: Uncontrolled Resource Consumption",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78"
}
],
"affected": [
{
"vendor": "remix-run",
"product": "react-router",
"versions": [
{
"version": ">= 7.0.0, < 7.15.0",
"status": "affected"
}
]
},
{
"vendor": "remix-run",
"product": "@remix-run/server-runtime",
"versions": [
{
"version": ">= 2.10.0, < 2.17.5",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-06-02T18:23:02.765Z"
},
"descriptions": [
{
"lang": "en",
"value": "React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 through 2.17.4 of @remix-run/server-runtime, certain crafted requests can consume disproportionate server resources via unbounded path expansion in the __manifest endpoint, resulting in response time degradation and/or service unavailability for end users. This affects React Router Framework Mode applications as well as Remix applications. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in react-router version 7.15.0 and @remix-run/server-runtime version 2.17.5."
}
],
"source": {
"advisory": "GHSA-8x6r-g9mw-2r78",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-03T13:52:31.015400Z",
"id": "CVE-2026-42342",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-06-03T13:52:43.400Z"
}
}
]
}
}