{
  "cveId": "CVE-2026-6653",
  "url": "https://patchblox.com/security/cve/CVE-2026-6653",
  "summary": "CVE-2026-6653 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2026-6653, released June 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libxml2: The libxml2 library is a development toolbox providing the implementation of various XML standards.\n\nSecurity Fix(es)...",
  "description": "The libxml2 library is a development toolbox providing the implementation of various XML standards.\n\nSecurity Fix(es):\n\n* libxml2: mingw-libxml2: libxml2: Denial of Service via crafted XML input due to use-after-free (CVE-2026-6653)\n\n* libxml2: libxml2: Arbitrary code execution in xmlcatalog utility via buffer overflow (CVE-2026-11979)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2026-06-21T17:00:00Z",
  "severity": "Moderate",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00355,
  "epssPercentile": 0.29441,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "Debian 14",
      "fixedVersion": "2.14.5\u002Bdfsg-0.1",
      "fix": "DEBIAN-CVE-2026-6653",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-6653",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "RHEL 8",
      "fixedVersion": "0:2.9.7-21.el8_10.8",
      "fix": "RHSA-2026:69655",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-69655",
      "released": "2026-09-22T19:07:45Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "RHEL 9",
      "fixedVersion": "0:2.9.13-14.el9_8.4",
      "fix": "RHSA-2026:61247",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-61247",
      "released": "2026-09-13T12:47:53Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.9.13\u002Bdfsg-1ubuntu0.12",
      "fix": "libxml2 2.9.13\u002Bdfsg-1ubuntu0.12",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libxml2-2.9.13-dfsg-1ubuntu0.12",
      "released": "2026-06-25T17:23:27Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.9.14\u002Bdfsg-1.3ubuntu3.8",
      "fix": "libxml2 2.9.14\u002Bdfsg-1.3ubuntu3.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libxml2-2.9.14-dfsg-1.3ubuntu3.8",
      "released": "2026-06-25T17:23:30Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "almalinux 8",
      "fixedVersion": "2.9.7-21.el8_10.8",
      "fix": "ALSA-2026:69655",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-69655",
      "released": "2026-09-21T00:00:00Z"
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    {
      "platform": "linux",
      "product": "libxml2",
      "release": "almalinux 9",
      "fixedVersion": "2.9.13-14.el9_8.4",
      "fix": "ALSA-2026:61247",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-61247",
      "released": "2026-08-31T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "amzn 2023",
      "fixedVersion": "2.10.4-1.amzn2023.0.19",
      "fix": "ALAS2023-2026-1911",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1911",
      "released": "2026-07-06T09:00:00Z"
    },
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      "platform": "linux",
      "product": "libxml2",
      "release": "ol 8",
      "fixedVersion": "0:2.9.7-21.el8_10.8",
      "fix": "ELSA-2026-69655",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-69655",
      "released": "2026-09-23T00:00:00Z"
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    {
      "platform": "linux",
      "product": "libxml2",
      "release": "ol 9",
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      "fix": "ELSA-2026-61247-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-61247-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "rocky 8",
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      "fix": "RLSA-2026:69655",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-69655",
      "released": "2026-09-23T06:00:55Z"
    },
    {
      "platform": "linux",
      "product": "libxml2",
      "release": "rocky 9",
      "fixedVersion": "0:2.9.13-14.el9_8.4",
      "fix": "RLSA-2026:61247",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-61247",
      "released": "2026-08-31T12:05:35Z"
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      "platform": "linux",
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      "released": "2026-07-06T09:00:00Z"
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    {
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      "fix": "RHSA-2026:69655",
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      "released": "2026-09-22T19:07:45Z"
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      "platform": "linux",
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      "fix": "RHSA-2026:61247",
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      "released": "2026-09-13T12:47:53Z"
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      "fix": "ALSA-2026:69655",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-69655",
      "released": "2026-09-21T00:00:00Z"
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    {
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      "fix": "ALSA-2026:61247",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-61247",
      "released": "2026-08-31T00:00:00Z"
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      "fix": "ALAS2023-2026-1911",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1911",
      "released": "2026-07-06T09:00:00Z"
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    {
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      "release": "ol 8",
      "fixedVersion": "0:2.9.7-21.el8_10.8",
      "fix": "ELSA-2026-69655",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-69655",
      "released": "2026-09-23T00:00:00Z"
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      "url": "https://patchblox.com/security/fix/linux/elsa-2026-61247-0",
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      "platform": "linux",
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      "released": "2026-06-25T17:23:27Z"
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    {
      "platform": "linux",
      "product": "libxml2-utils",
      "release": "Ubuntu 24.04.5 LTS (noble)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-python3-libxml2-2.9.14-dfsg-1.3ubuntu3.8",
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    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}