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vuln-cve/data/2025/30xxx/CVE-2025-30218.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2025-30218",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2025-03-18T18:15:13.850Z",
"datePublished": "2025-04-02T21:23:14.660Z",
"dateUpdated": "2025-10-13T15:37:02.310Z"
},
"containers": {
"cna": {
"title": "Next.js may leak x-middleware-subrequest-id to external hosts",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"lang": "en",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 1.7,
"baseSeverity": "LOW",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-223j-4rm8-mrmf",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-223j-4rm8-mrmf"
},
{
"name": "https://vercel.com/changelog/cve-2025-30218-5DREmEH765PoeAsrNNQj3O",
"tags": [
"x_refsource_MISC"
],
"url": "https://vercel.com/changelog/cve-2025-30218-5DREmEH765PoeAsrNNQj3O"
}
],
"affected": [
{
"vendor": "vercel",
"product": "next.js",
"versions": [
{
"version": "= 12.3.5",
"status": "affected"
},
{
"version": "= 13.5.9",
"status": "affected"
},
{
"version": "= 14.2.25",
"status": "affected"
},
{
"version": "= 15.2.3",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2025-10-13T15:37:02.310Z"
},
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. To mitigate CVE-2025-29927, Next.js validated the x-middleware-subrequest-id which persisted across multiple incoming requests. However, this subrequest ID is sent to all requests, even if the destination is not the same host as the Next.js application. Initiating a fetch request to a third-party within Middleware will send the x-middleware-subrequest-id to that third party. This vulnerability is fixed in 12.3.6, 13.5.10, 14.2.26, and 15.2.4."
}
],
"source": {
"advisory": "GHSA-223j-4rm8-mrmf",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-04-03T13:43:59.337390Z",
"id": "CVE-2025-30218",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"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": "2025-04-03T13:44:11.988Z"
}
}
]
}
}