{
  "cveId": "CVE-2026-102997",
  "url": "https://patchblox.com/security/cve/CVE-2026-102997",
  "summary": "CVE-2026-102997 is fixed in pypdf on 1 platform by DEBIAN-CVE-2026-102997 (version 6.19.0-1), released October 4, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "pypdf: pypdf is a free and open-source pure-python PDF library",
  "description": "pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF containing a partially malformed /FlateDecode stream with padded data can force pypdf/filters.py to use inefficient byte-by-byte decompression while the earlier recovery counter fails to advance for bytes that successfully decode, causing long runtimes and application unavailability. This is a residual issue after the malformed FlateDecode recovery fix. This issue is fixed in version 6.18.1.",
  "published": "2026-09-30T21:17:07Z",
  "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": 0.0034,
  "epssPercentile": 0.27722,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "pypdf",
      "release": "Debian 14",
      "fixedVersion": "6.19.0-1",
      "fix": "DEBIAN-CVE-2026-102997",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-102997",
      "released": "2026-10-04T21:29:23Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}