{
  "cveId": "CVE-2026-110688",
  "url": "https://patchblox.com/security/cve/CVE-2026-110688",
  "summary": "CVE-2026-110688 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-110688, released October 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libcpanel-json-xs-perl: Cpanel::JSON::XS versions from 4.51 before 4.80 for Perl allow quadratic CPU use by revalidating the remaining buffer...",
  "description": "Cpanel::JSON::XS versions from 4.51 before 4.80 for Perl allow quadratic CPU use by revalidating the remaining buffer per value in incr_parse.  At the first non-ASCII byte in a string, the decoder validates UTF-8 from there to the end of its input. incr_parse decodes each buffered value with a fresh decoder, so every value revalidates the rest of the buffer, and doubling the input quadruples the work.  A peer that sends about a megabyte of ordinary non-ASCII JSON in one read ties up the process for seconds of CPU time.",
  "published": "2026-10-15T14:14:56Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00485,
  "epssPercentile": 0.42042,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libcpanel-json-xs-perl",
      "release": "Debian 14",
      "fixedVersion": "4.80-1",
      "fix": "DEBIAN-CVE-2026-110688",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-110688",
      "released": "2026-10-24T13:25:57Z"
    },
    {
      "platform": "linux",
      "product": "perl-Cpanel-JSON-XS",
      "release": "Fedora 43",
      "fixedVersion": "4.80-1.fc43",
      "fix": "FEDORA-2026-4447E52D23",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4447e52d23",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "perl-Cpanel-JSON-XS",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "4.800.0-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:22187-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22187-1",
      "released": "2026-11-07T00:47:19Z"
    },
    {
      "platform": "linux",
      "product": "perl-Cpanel-JSON-XS",
      "release": "sles 15.7",
      "fixedVersion": "4.800.0-150700.3.9.1",
      "fix": "SUSE-SU-2026:4926-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4926-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "perl-Cpanel-JSON-XS-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "4.80-1.fc43",
      "fix": "FEDORA-2026-4447E52D23",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4447e52d23",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "perl-Cpanel-JSON-XS-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "4.80-1.fc43",
      "fix": "FEDORA-2026-4447E52D23",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4447e52d23",
      "released": "2026-11-07T01:05:44Z"
    }
  ],
  "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"
  }
}