{
  "cveId": "CVE-2026-11526",
  "url": "https://patchblox.com/security/cve/CVE-2026-11526",
  "summary": "CVE-2026-11526 is fixed in 4 products on 1 platform, first by libgd-perl 2.84-2ubuntu0.1, released June 14, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle",
  "description": "GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle.  GD::Image::_make_filehandle opens a filename argument with Perl\u0027s 2-arg open(), so a filename that begins or ends with a pipe (\u0022| cmd\u0022, \u0022cmd |\u0022) or begins with a redirect (\u0022\u003E path\u0022, \u0022\u003E\u003E path\u0022) is run as a command or redirect rather than opened as a file. _make_filehandle is the single open path behind every filename-accepting constructor (new, newFromPng, newFromJpeg, and the rest); the in-memory *Data variants do not open a path and are unaffected.  Any caller that forwards untrusted input to one of these constructors as a pathname can run an arbitrary command or truncate a file under the process UID.",
  "published": "2026-06-14T05:16:00Z",
  "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",
  "cwe": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
  "epss": 0.01353,
  "epssPercentile": 0.71761,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11526",
  "fixes": [
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.76-4\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-11526",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11526",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.78-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-11526",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11526",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Debian 14",
      "fixedVersion": "2.84-3",
      "fix": "DEBIAN-CVE-2026-11526",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11526",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.76-2ubuntu0.1",
      "fix": "libgd-perl 2.76-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libgd-perl-2.76-2ubuntu0.1",
      "released": "2026-07-03T14:54:52Z"
    },
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.78-1ubuntu0.24.04.1",
      "fix": "libgd-perl 2.78-1ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libgd-perl-2.78-1ubuntu0.24.04.1",
      "released": "2026-07-03T14:54:55Z"
    },
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "2.78-1ubuntu0.25.10.1",
      "fix": "libgd-perl 2.78-1ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libgd-perl-2.78-1ubuntu0.25.10.1",
      "released": "2026-07-03T14:54:58Z"
    },
    {
      "platform": "linux",
      "product": "libgd-perl",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.84-2ubuntu0.1",
      "fix": "libgd-perl 2.84-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libgd-perl-2.84-2ubuntu0.1",
      "released": "2026-06-14T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-GD",
      "release": "amzn 2023",
      "fixedVersion": "2.80-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1890",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1890",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-GD-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.80-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1890",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1890",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-GD-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2.80-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1890",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1890",
      "released": "2026-06-22T09:00:00Z"
    }
  ],
  "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"
  }
}