{
  "cveId": "CVE-2026-123591",
  "url": "https://patchblox.com/security/cve/CVE-2026-123591",
  "summary": "CVE-2026-123591 is fixed in rust-hickory-net on 1 platform by DEBIAN-CVE-2026-123591 (version 0.26.3-1), released November 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "rust-hickory-net: Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 fail to verify, per RFC...",
  "description": "Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 fail to verify, per RFC 6840 \u00A74.4, that an NSEC or NSEC3 record denying a DS RRset also proves the delegation\u0027s NS record exists. Attackers can reuse child-side NSEC or NSEC3 records to fake an insecure delegation and forge child-zone records.",
  "published": "2026-11-08T02:16:53Z",
  "severity": "medium",
  "cvss": 5.9,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss": 0.00134,
  "epssPercentile": 0.0294,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rust-hickory-net",
      "release": "Debian 14",
      "fixedVersion": "0.26.3-1",
      "fix": "DEBIAN-CVE-2026-123591",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-123591",
      "released": "2026-11-09T02:18:44Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-11T01:43:54Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}