{
  "cveId": "CVE-2026-23556",
  "url": "https://patchblox.com/security/cve/CVE-2026-23556",
  "summary": "CVE-2026-23556 is fixed in xen on 1 platform, first by DEBIAN-CVE-2026-23556, released August 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "xen: When oxenstored is tearing a domain down, the node data is cleaned up but the usage counts are leaked",
  "description": "When oxenstored is tearing a domain down, the node data is cleaned up but the usage counts are leaked.  When the domain ID is eventually reused, the new domain can create fewer nodes before beeing deemed to be over quota.",
  "published": "2026-07-09T16:16:38Z",
  "severity": "",
  "epss": 0.00137,
  "epssPercentile": 0.03117,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.17.7-0\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-23556",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23556",
      "released": "2026-08-03T14:46:46Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.20.3\u002B127-gc42374a105-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-23556",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23556",
      "released": "2026-08-03T14:46:46Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.20.3\u002B127-gc42374a105-1",
      "fix": "DEBIAN-CVE-2026-23556",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23556",
      "released": "2026-08-03T14:46:46Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}