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vuln-cve/data/2026/83xxx/CVE-2026-83813.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-83813",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-31T23:04:48.173Z",
"datePublished": "2026-10-23T20:21:54.364Z",
"dateUpdated": "2026-10-29T18:15:36.711Z"
},
"containers": {
"cna": {
"title": "Twisted: DNS Response Spoofing in twisted.names Due to Missing Source Address Validation",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-346",
"lang": "en",
"description": "CWE-346: Origin Validation Error",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/twisted/twisted/security/advisories/GHSA-jj36-9pvh-vj5r",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/twisted/twisted/security/advisories/GHSA-jj36-9pvh-vj5r"
},
{
"name": "https://github.com/twisted/twisted/pull/12700",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/twisted/twisted/pull/12700"
},
{
"name": "https://github.com/twisted/twisted/commit/b53e1c3477c209b5609a1c74cf9e48373b5879ac",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/twisted/twisted/commit/b53e1c3477c209b5609a1c74cf9e48373b5879ac"
},
{
"name": "https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1"
}
],
"affected": [
{
"vendor": "twisted",
"product": "twisted",
"versions": [
{
"version": "< 26.7.0rc1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-10-23T20:21:54.364Z"
},
"descriptions": [
{
"lang": "en",
"value": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, twisted.names.dns.DNSDatagramProtocol accepts a UDP DNS response for a pending query when its 16-bit transaction ID matches but does not verify that the response came from the queried host and port. An attacker able to deliver a packet to the resolver's listening port with the correct transaction ID can inject a forged answer. The standard twisted.names.client.Resolver uses a new random source port for each query, increasing off-path attack complexity, while applications that reuse a DNSDatagramProtocol instance expose only the transaction-ID search space after the first query. A successful forgery can redirect hostname resolution and enable mail interception, server-side request forgery, or man-in-the-middle positioning. This issue is fixed in version 26.10.0rc1."
}
],
"source": {
"advisory": "GHSA-jj36-9pvh-vj5r",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/twisted/twisted/security/advisories/GHSA-jj36-9pvh-vj5r",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-10-29T18:15:10.606448Z",
"id": "CVE-2026-83813",
"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": "2026-10-29T18:15:36.711Z"
}
}
]
}
}