{
  "cveId": "CVE-2026-86137",
  "url": "https://patchblox.com/security/cve/CVE-2026-86137",
  "summary": "CVE-2026-86137 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2026-86137, released September 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.",
  "description": "In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.",
  "published": "2026-09-05T05:17:11Z",
  "severity": "Low",
  "cvss": 6.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L",
  "cwe": "Out-of-bounds Read",
  "epss": 0.00195,
  "epssPercentile": 0.09251,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-86137",
  "fixes": [
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "Debian 14",
      "fixedVersion": "2.15.4\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-86137",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-86137",
      "released": "2026-09-11T12:23:55Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-devel",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2-static",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-libxml2",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-libxml2-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.21",
      "fix": "ALAS2023-2026-3122",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3122",
      "released": "2026-09-28T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}