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vuln-cve/data/2026/49xxx/CVE-2026-49411.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-49411",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-05-29T19:08:01.258Z",
"datePublished": "2026-06-23T17:18:07.354Z",
"dateUpdated": "2026-06-26T18:56:10.417Z"
},
"containers": {
"cna": {
"title": "Deno Node TCPWrap numeric hostname aliases bypass --deny-net resolved-IP deny checks",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"lang": "en",
"description": "CWE-284: Improper Access Control",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/denoland/deno/security/advisories/GHSA-v8fw-85r8-5m23",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/denoland/deno/security/advisories/GHSA-v8fw-85r8-5m23"
}
],
"affected": [
{
"vendor": "denoland",
"product": "deno",
"versions": [
{
"version": "< 2.8.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-06-23T17:18:07.354Z"
},
"descriptions": [
{
"lang": "en",
"value": "Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.8.0, the Node.js compatibility TCP path checked the permission against the original hostname string before resolution and then did not re-check after resolution. A caller could therefore pass a numeric alias of an IP address (for example the decimal integer 2130706433 or the hex form 0x7f000001, both of which resolve to 127.0.0.1) and reach the denied destination through node:net.connect or node:http.request's { host, port } options form. This vulnerability is fixed in 2.8.0."
}
],
"source": {
"advisory": "GHSA-v8fw-85r8-5m23",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/denoland/deno/security/advisories/GHSA-v8fw-85r8-5m23",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-26T18:55:45.500229Z",
"id": "CVE-2026-49411",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-06-26T18:56:10.417Z"
}
}
]
}
}