{
  "cveId": "CVE-2026-77220",
  "url": "https://patchblox.com/security/cve/CVE-2026-77220",
  "summary": "CVE-2026-77220 is fixed in pdfio on 1 platform by DEBIAN-CVE-2026-77220 (version 1.6.5\u002Bdfsg-1), released September 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "pdfio: PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores...",
  "description": "PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the document dictionary without copying the string value. In multi-threaded or pooled-request environments, attackers or concurrent users can trigger stack memory reuse across requests, causing cross-tenant document content corruption by silently overwriting one caller\u0027s dictionary string values with another caller\u0027s data.",
  "published": "2026-08-21T21:17:06Z",
  "severity": "",
  "epss": 0.00421,
  "epssPercentile": 0.36704,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "pdfio",
      "release": "Debian 14",
      "fixedVersion": "1.6.5\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-77220",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-77220",
      "released": "2026-09-07T02:17:45Z"
    }
  ],
  "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"
  }
}