CVE-2026-128089

{
  "etk_id": "ETK-2026-3424",
  "cve_id": "CVE-2026-128089",
  "display_id": "CVE-2026-128089",
  "ghsa_id": "GHSA-vvf4-9x63-8xvv",
  "euvd_id": "EUVD-2026-125726",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Excessive resource consumption in dnspython WKS parsing",
  "summary": "dnspython versions before 2.9.2 can consume excessive memory and CPU while parsing WKS records in zone-file text. An attacker may cause a denial of service if the application parses zone-file record types and RDATA that the attacker controls.",
  "mitigation": "Upgrade dnspython to version 2.9.2 or later. Until upgraded, do not parse attacker-controlled zone-file text or restrict untrusted WKS records.",
  "vendor": "pip",
  "product": "pip:dnspython",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 2.9.2"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "2.9.2"
      ],
      "package_name": "dnspython",
      "purl": "pkg:pypi/dnspython"
    }
  ],
  "cwes": [
    400
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 3.1432226666666665,
  "t0_at": "2026-11-13T19:22:22.444000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-13T20:39:10.784673+00:00",
      "days": 0.05333727630787037,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T19:22:22.444000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-04T00:04:35+00:00",
      "days": -9.804021342592593,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T19:22:22.444000+00:00",
      "url": "https://github.com/rthalley/dnspython/security/advisories/GHSA-vvf4-9x63-8xvv"
    }
  }
}