{
  "cveId": "CVE-2026-26825",
  "url": "https://patchblox.com/security/cve/CVE-2026-26825",
  "summary": "CVE-2026-26825 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-26825, released June 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "r-cran-readxl: A use-of-uninitialized memory vulnerability exists in libxls 1.6.3 when parsing malformed XLS files",
  "description": "A use-of-uninitialized memory vulnerability exists in libxls 1.6.3 when parsing malformed XLS files. The issue is reachable via xls_parseWorkBook() and is triggered by uninitialized heap memory originating from the OLE layer (ole2_read). The flaw is detectable with MemorySanitizer (MSAN) and can lead to undefined behavior, incorrect parsing logic, or potential information disclosure.",
  "published": "2026-06-03T20:16:18Z",
  "severity": "medium",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
  "epss": 0.00242,
  "epssPercentile": 0.15474,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libxls",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.6.4-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:22128-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22128-1",
      "released": "2026-11-07T00:47:19Z"
    },
    {
      "platform": "linux",
      "product": "r-cran-readxl",
      "release": "Debian 14",
      "fixedVersion": "1.6.0-1",
      "fix": "DEBIAN-CVE-2026-26825",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-26825",
      "released": "2026-06-03T20:16:18Z"
    }
  ],
  "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"
  }
}