CVE-2026-111066

{
  "etk_id": "ETK-2026-2096",
  "cve_id": "CVE-2026-111066",
  "display_id": "CVE-2026-111066",
  "ghsa_id": "GHSA-9xw5-w5jj-pvcg",
  "euvd_id": "EUVD-2026-104482",
  "status": "published",
  "anchor_state": "anchored",
  "title": "File descriptor exhaustion in aiohttp multipart processing",
  "summary": "aiohttp versions 2.0.0 through 3.14.3 can retain file descriptors while processing multipart requests. An unauthenticated remote attacker may exhaust available descriptors if the application handles multipart input with Request.post().",
  "mitigation": "Upgrade aiohttp to version 3.14.4. Until upgrades are complete, restrict unauthenticated access to endpoints that accept multipart requests and use Request.post().",
  "vendor": "aio-libs",
  "product": "aiohttp",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=2, < 3.14.4"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "3.14.4"
      ],
      "package_name": "aiohttp",
      "purl": "pkg:pypi/aiohttp"
    }
  ],
  "cwes": [
    400
  ],
  "cvss_score": 8.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0038,
  "epss_percentile": 0.3068,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 6.9560452,
  "t0_at": "2026-10-19T16:59:47.217000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-19T16:59:47.217000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-19T16:59:47.217000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-111066"
    }
  }
}