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vuln-cve/data/2026/21xxx/CVE-2026-21714.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-21714",
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"state": "PUBLISHED",
"assignerShortName": "hackerone",
"dateReserved": "2026-01-04T15:00:06.574Z",
"datePublished": "2026-03-30T19:07:28.317Z",
"dateUpdated": "2026-03-31T18:05:22.283Z"
},
"containers": {
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{
"lang": "en",
"value": "A memory leak occurs in Node.js HTTP/2 servers when a client sends WINDOW_UPDATE frames on stream 0 (connection-level) that cause the flow control window to exceed the maximum value of 2³¹-1. The server correctly sends a GOAWAY frame, but the Http2Session object is never cleaned up.\r\n\r\nThis vulnerability affects HTTP2 users on Node.js 20, 22, 24 and 25."
}
],
"affected": [
{
"defaultStatus": "unaffected",
"vendor": "nodejs",
"product": "node",
"versions": [
{
"version": "20.20.1",
"status": "affected",
"lessThanOrEqual": "20.20.1",
"versionType": "semver"
},
{
"version": "22.22.1",
"status": "affected",
"lessThanOrEqual": "22.22.1",
"versionType": "semver"
},
{
"version": "24.14.0",
"status": "affected",
"lessThanOrEqual": "24.14.0",
"versionType": "semver"
},
{
"version": "25.8.1",
"status": "affected",
"lessThanOrEqual": "25.8.1",
"versionType": "semver"
}
]
}
],
"references": [
{
"url": "https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"
}
],
"metrics": [
{
"cvssV3_0": {
"version": "3.0",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"baseScore": 5.3,
"baseSeverity": "MEDIUM"
}
}
],
"providerMetadata": {
"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"shortName": "hackerone",
"dateUpdated": "2026-03-30T19:07:28.317Z"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-401",
"lang": "en",
"description": "CWE-401 Missing Release of Memory after Effective Lifetime"
}
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-03-31T16:14:45.777607Z",
"id": "CVE-2026-21714",
"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": "2026-03-31T18:05:22.283Z"
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}
}