{
  "cveId": "CVE-2026-73248",
  "url": "https://patchblox.com/security/cve/CVE-2026-73248",
  "summary": "CVE-2026-73248 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-73248, released August 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "calibre: calibre is an e-book manager",
  "description": "calibre is an e-book manager. Prior to 9.12.0, calibre processes attacker-controlled composite_template metadata from a malicious EPUB, OPF, PDF, or similar file through program: and a nested template() call whose formatter does not inherit allow_python_templates=False, allowing a nested python: template to reach compile_python_template and execute arbitrary Python code when the file is opened or imported. This issue is fixed in version 9.12.0.",
  "published": "2026-08-11T22:19:05Z",
  "severity": "",
  "epss": 0.00197,
  "epssPercentile": 0.09504,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 14",
      "fixedVersion": "9.12.0\u002Bds\u002B~0.10.6-1",
      "fix": "DEBIAN-CVE-2026-73248",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-73248",
      "released": "2026-08-13T22:19:30Z"
    },
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Fedora 43",
      "fixedVersion": "9.13.0-1.fc43",
      "fix": "FEDORA-2026-C10ED2F3B7",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-c10ed2f3b7",
      "released": "2026-08-16T20:29:50Z"
    },
    {
      "platform": "linux",
      "product": "calibre-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "9.13.0-1.fc43",
      "fix": "FEDORA-2026-C10ED2F3B7",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-c10ed2f3b7",
      "released": "2026-08-16T20:29:50Z"
    },
    {
      "platform": "linux",
      "product": "calibre-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "9.13.0-1.fc43",
      "fix": "FEDORA-2026-C10ED2F3B7",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-c10ed2f3b7",
      "released": "2026-08-16T20:29:50Z"
    }
  ],
  "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"
  }
}