{
  "id": "CVE-2026-86471",
  "url": "https://spydr.io/cve/CVE-2026-86471",
  "published": "2026-10-20T16:17:15.217Z",
  "modified": "2026-10-20T17:17:42.713Z",
  "score": 9.3,
  "severity": "critical",
  "cvss_version": "4.0",
  "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Red",
  "score_source": "apache.org",
  "epss": null,
  "epss_percentile": null,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": "none",
  "vendors": [
    "Apache Software Foundation"
  ],
  "products": [
    "Apache Software Foundation Apache CouchDB"
  ],
  "cwes": [
    "CWE-78"
  ],
  "description": "An unvalidated runtime configuration value in Apache CouchDB 3.5.2 and below on all platforms allows a CouchDB server admin to run arbitrary shell commands as the CouchDB operating system user. Users are recommended to upgrade to version 3.5.3, which fixes this issue.",
  "status": "Received",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": 9.3,
    "cvss_v31": null,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f",
      "tags": []
    },
    {
      "url": "https://lists.apache.org/thread/c8p73gswgogtnzvk7hpw8jb8d4mnosdp",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86471",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}