{
  "cveId": "CVE-2026-86435",
  "url": "https://patchblox.com/security/cve/CVE-2026-86435",
  "summary": "CVE-2026-86435 is fixed in php-league-commonmark on 1 platform by DEBIAN-CVE-2026-86435 (version 2.9.0-1), released September 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "php-league-commonmark: commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Footnote extension that...",
  "description": "commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Footnote extension that fails to deduplicate footnote definitions. Attackers can craft documents with duplicate footnote definitions and references to create quadratic output expansion, consuming excessive memory and CPU to exhaust server resources.",
  "published": "2026-09-07T13:20:43Z",
  "severity": "",
  "epss": 0.00488,
  "epssPercentile": 0.42269,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "php-league-commonmark",
      "release": "Debian 14",
      "fixedVersion": "2.9.0-1",
      "fix": "DEBIAN-CVE-2026-86435",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-86435",
      "released": "2026-09-08T02:27:47Z"
    }
  ],
  "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"
  }
}