{
  "cveId": "CVE-2026-26824",
  "url": "https://patchblox.com/security/cve/CVE-2026-26824",
  "summary": "CVE-2026-26824 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-26824, released June 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "r-cran-readxl: libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser",
  "description": "libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser. Memory allocated for the Master Sector Allocation Table (MSAT) in read_MSAT() is not fully initialized before being consumed by ole2_validate_sector_chain(), which may result in application crashes or potential information disclosure when processing a crafted XLS file",
  "published": "2026-06-03T20:16:18Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
  "epss": 0.0027,
  "epssPercentile": 0.19358,
  "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-2026-26824",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-26824",
      "released": "2026-06-03T20:16:18Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}