{
    "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": "2026-10-23T20:21:54.364Z"
    },
    "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"
            }
        }
    }
}