{
  "cveId": "CVE-2026-89687",
  "url": "https://patchblox.com/security/cve/CVE-2026-89687",
  "summary": "CVE-2026-89687 is fixed in linux on 1 platform by DEBIAN-CVE-2026-89687 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  nfsd: ensure nfsd_file_do_acquire() does not use...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  nfsd: ensure nfsd_file_do_acquire() does not use a non-opened file  -\u003Eatomic_open is permitted to return success without actually opening the file.  It indicates this by calling finish_no_open(). This means dentry_create() can return a file which hasn\u0027t been opened. This is extremely unlikely as -\u003Eatomic_open handlers typically use finish_no_open() only for already existing files, and dentry_create() isn\u0027t called in that case, and the parent being locked should prevent races.  However out of an abundance of caution it seems wise to teach nfsd to only use the file returned by dentry_create() if FMODE_OPENED is set, indicating that it has in fact been opened.",
  "published": "2026-09-11T20:19:55Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00488,
  "epssPercentile": 0.4228,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-89687",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89687",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}