{
  "cveId": "CVE-2026-41066",
  "url": "https://patchblox.com/security/cve/CVE-2026-41066",
  "summary": "CVE-2026-41066 is fixed in 8 products on 1 platform, first by ALAS2023-2026-1678, released May 11, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files",
  "description": "lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read local files. Setting the resolve_entities option explicitly to resolve_entities=\u0027internal\u0027 or resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.",
  "published": "2026-04-24T10:16:00Z",
  "severity": "Important",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "cwe": "Improper Restriction of XML External Entity Reference",
  "epss": 0.00324,
  "epssPercentile": 0.25677,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41066",
  "fixes": [
    {
      "platform": "linux",
      "product": "lxml",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.9.2-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-41066",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41066",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "lxml",
      "release": "Debian 14",
      "fixedVersion": "6.1.0-1",
      "fix": "DEBIAN-CVE-2026-41066",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41066",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "python-lxml",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.2.1-1ubuntu0.6\u002Besm1",
      "fix": "python-lxml 4.2.1-1ubuntu0.6\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-lxml-4.2.1-1ubuntu0.6-esm1",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python-lxml",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.5.0-1ubuntu0.5\u002Besm1",
      "fix": "python-lxml 4.5.0-1ubuntu0.5\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-lxml-4.5.0-1ubuntu0.5-esm1",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python-lxml",
      "release": "sles 15.7",
      "fixedVersion": "4.9.3-150400.8.11.1",
      "fix": "SUSE-SU-2026:2729-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2729-1",
      "released": "2026-07-02T17:31:23Z"
    },
    {
      "platform": "linux",
      "product": "python-lxml-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "4.7.1-3.amzn2023.0.3",
      "fix": "ALAS2023-2026-1678",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1678",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.2.1-1ubuntu0.6\u002Besm1",
      "fix": "python3-lxml 4.2.1-1ubuntu0.6\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-lxml-4.2.1-1ubuntu0.6-esm1",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.5.0-1ubuntu0.5\u002Besm1",
      "fix": "python3-lxml 4.5.0-1ubuntu0.5\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-lxml-4.5.0-1ubuntu0.5-esm1",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.8.0-1ubuntu0.1",
      "fix": "python3-lxml 4.8.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-python3-lxml-4.8.0-1ubuntu0.1",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "5.2.1-1ubuntu0.2",
      "fix": "python3-lxml 5.2.1-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-python3-lxml-5.2.1-1ubuntu0.2",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "6.0.2-1ubuntu0.1",
      "fix": "python3-lxml 6.0.2-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-python3-lxml-6.0.2-1ubuntu0.1",
      "released": "2026-08-20T08:17:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "amzn 2023",
      "fixedVersion": "4.7.1-3.amzn2023.0.3",
      "fix": "ALAS2023-2026-1678",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1678",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml",
      "release": "sles 15.7",
      "fixedVersion": "4.9.1-150500.3.7.1",
      "fix": "SUSE-SU-2026:2754-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2754-1",
      "released": "2026-07-03T19:22:09Z"
    },
    {
      "platform": "linux",
      "product": "python3-lxml-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "4.7.1-3.amzn2023.0.3",
      "fix": "ALAS2023-2026-1678",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1678",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-lxml",
      "release": "amzn 2023",
      "fixedVersion": "5.3.2-3.amzn2023.0.2",
      "fix": "ALAS2023-2026-1679",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1679",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-lxml-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "5.3.2-3.amzn2023.0.2",
      "fix": "ALAS2023-2026-1679",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1679",
      "released": "2026-05-11T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3.13-lxml-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "5.3.2-3.amzn2023.0.2",
      "fix": "ALAS2023-2026-1679",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1679",
      "released": "2026-05-11T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}