{
  "cveId": "CVE-2026-8829",
  "url": "https://patchblox.com/security/cve/CVE-2026-8829",
  "summary": "CVE-2026-8829 is fixed in 5 products on 1 platform, first by libhtml-parser-perl 3.76-1ubuntu0.1, released June 3, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities",
  "description": "HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities. The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV\u0027s PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation. The read may disclose adjacent heap contents into the destination SV.",
  "published": "2026-06-03T20:16:00Z",
  "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": "Use After Free",
  "epss": 0.00408,
  "epssPercentile": 0.35326,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8829",
  "fixes": [
    {
      "platform": "linux",
      "product": "libhtml-parser-perl",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.81-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-8829",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8829",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libhtml-parser-perl",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.83-2~deb13u1",
      "fix": "DEBIAN-CVE-2026-8829",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8829",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libhtml-parser-perl",
      "release": "Debian 14",
      "fixedVersion": "3.83-2",
      "fix": "DEBIAN-CVE-2026-8829",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8829",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libhtml-parser-perl",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.76-1ubuntu0.1",
      "fix": "libhtml-parser-perl 3.76-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libhtml-parser-perl-3.76-1ubuntu0.1",
      "released": "2026-06-03T20:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libhtml-parser-perl",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.81-1ubuntu0.1",
      "fix": "libhtml-parser-perl 3.81-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libhtml-parser-perl-3.81-1ubuntu0.1",
      "released": "2026-06-03T20:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libhtml-parser-perl",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.83-1ubuntu0.1",
      "fix": "libhtml-parser-perl 3.83-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libhtml-parser-perl-3.83-1ubuntu0.1",
      "released": "2026-06-03T20:16:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser",
      "release": "amzn 2023",
      "fixedVersion": "3.76-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-1836",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1836",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.830.0-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21126-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21126-1",
      "released": "2026-06-20T06:49:38Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser",
      "release": "sles 15.7",
      "fixedVersion": "3.830.0-150000.3.6.1",
      "fix": "SUSE-SU-2026:2950-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2950-1",
      "released": "2026-07-14T09:24:33Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser",
      "release": "sles 16.0",
      "fixedVersion": "3.830.0-160000.3.1",
      "fix": "SUSE-SU-2026:22189-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22189-1",
      "released": "2026-06-20T06:49:45Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "3.76-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-1836",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1836",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "3.76-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-1836",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1836",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-HTML-Parser-tests",
      "release": "amzn 2023",
      "fixedVersion": "3.76-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-1836",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1836",
      "released": "2026-06-22T09:00:00Z"
    }
  ],
  "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"
  }
}