{
  "cveId": "CVE-2026-86139",
  "url": "https://patchblox.com/security/cve/CVE-2026-86139",
  "summary": "CVE-2026-86139 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-86139, released September 11, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.",
  "description": "In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.",
  "published": "2026-09-04T22:17:00Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "cwe": "Integer Overflow or Wraparound",
  "epss": 0.00166,
  "epssPercentile": 0.05897,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-86139",
  "fixes": [
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "Debian 14",
      "fixedVersion": "2.15.4\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-86139",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-86139",
      "released": "2026-09-11T12:23:55Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-16",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "fix": "libxml2-16 2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libxml2-16-2.15.2-dfsg-0.1ubuntu0.3",
      "released": "2026-09-17T09:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-source",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "fix": "libxml2-source 2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libxml2-source-2.15.2-dfsg-0.1ubuntu0.3",
      "released": "2026-09-17T09:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-utils",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "fix": "libxml2-utils 2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libxml2-utils-2.15.2-dfsg-0.1ubuntu0.3",
      "released": "2026-09-17T09:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-libxml2",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "fix": "python3-libxml2 2.15.2\u002Bdfsg-0.1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-python3-libxml2-2.15.2-dfsg-0.1ubuntu0.3",
      "released": "2026-09-17T09:17:00Z"
    }
  ],
  "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"
  }
}