{
  "cveId": "CVE-2026-25636",
  "url": "https://patchblox.com/security/cve/CVE-2026-25636",
  "summary": "CVE-2026-25636 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-25636, released February 6, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "calibre: calibre is an e-book manager",
  "description": "calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre\u0027s EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReference URI from META-INF/encryption.xml to an absolute filesystem path and opens it in read-write mode, even when it points outside the conversion extraction directory. This vulnerability is fixed in 9.2.0.",
  "published": "2026-02-06T21:16:18Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.00231,
  "epssPercentile": 0.13985,
  "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-2026-25636",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-25636",
      "released": "2026-02-06T21:16:18Z"
    },
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "8.5.0\u002Bds-1\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-25636",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-25636",
      "released": "2026-02-06T21:16:18Z"
    },
    {
      "platform": "linux",
      "product": "calibre",
      "release": "Debian 14",
      "fixedVersion": "9.2.0\u002Bds\u002B~0.10.5-1",
      "fix": "DEBIAN-CVE-2026-25636",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-25636",
      "released": "2026-02-06T21:16:18Z"
    },
    {
      "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"
  }
}