{
  "cveId": "CVE-2026-53511",
  "url": "https://patchblox.com/security/cve/CVE-2026-53511",
  "summary": "CVE-2026-53511 is fixed in calibre on 1 platform, first by DEBIAN-CVE-2026-53511, released July 8, 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 9.10.0, a malicious EPUB, OPF, or PDF file can execute arbitrary Python code when its metadata is read by calibre, including through Add books or Edit books, by embedding a custom column definition with a python: template in calibre:user_metadata that is passed unsanitized to exec() in the template formatter. This issue is fixed in version 9.10.0.",
  "published": "2026-07-07T21:17:26Z",
  "severity": "",
  "epss": 0.0022,
  "epssPercentile": 0.12532,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.13.0\u002Brepack-2\u002Bdeb12u10",
      "fix": "DEBIAN-CVE-2026-53511",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53511",
      "released": "2026-07-08T15:36:43Z"
    },
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 14",
      "fixedVersion": "9.10.0\u002Bds\u002B~0.10.6-1",
      "fix": "DEBIAN-CVE-2026-53511",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53511",
      "released": "2026-07-08T15:36:43Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}