{
  "cveId": "CVE-2026-26064",
  "url": "https://patchblox.com/security/cve/CVE-2026-26064",
  "summary": "CVE-2026-26064 is fixed in calibre on 1 platform, first by DEBIAN-CVE-2026-26064, released February 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "calibre: calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books",
  "description": "calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below contain a Path Traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows, this leads to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. Function extract_pictures only checks startswith(\u0027Pictures\u0027), and does not sanitize \u0027..\u0027 sequences. calibre\u0027s own ZipFile.extractall() in utils/zipfile.py does sanitize \u0027..\u0027 via _get_targetpath(), but extract_pictures() bypasses this by using manual zf.read() \u002B open(). This issue has been fixed in version 9.3.0.",
  "published": "2026-02-20T02:16:52Z",
  "severity": "high",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00979,
  "epssPercentile": 0.62399,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.13.0\u002Brepack-2\u002Bdeb12u6",
      "fix": "DEBIAN-CVE-2026-26064",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-26064",
      "released": "2026-02-20T02:16:52Z"
    },
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "8.5.0\u002Bds-1\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-26064",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-26064",
      "released": "2026-02-20T02:16:52Z"
    },
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 14",
      "fixedVersion": "9.3.0\u002Bds\u002B~0.10.5-1",
      "fix": "DEBIAN-CVE-2026-26064",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-26064",
      "released": "2026-02-20T02:16:52Z"
    }
  ],
  "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"
  }
}