{
  "cveId": "CVE-2026-18654",
  "url": "https://patchblox.com/security/cve/CVE-2026-18654",
  "summary": "CVE-2026-18654 is fixed in 2 products on 2 platforms, first by AWS Command Line Interface 2.35.3, released June 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Disabled SSH host key verification in Amazon AWS CLI EMR helper commands",
  "description": "Key exchange without entity authentication in the EMR SSH helper commands in Amazon AWS CLI before 1.45.28 and AWS CLI v2 before 2.35.3 might allow man-in-the-middle attackers to intercept SSHsessions and file transfers via network positioning between the client and the EMR cluster endpoint.\n\n\n\nTo remediate this issue, users should upgrade to AWS CLI v1 1.45.28 or later, or AWS CLI v2 2.35.3 or later.",
  "published": "2026-08-03T20:17:17Z",
  "severity": "moderate",
  "cvss": 6.9,
  "cwe": "CWE-322: Key exchange without entity authentication",
  "epss": 0.00462,
  "epssPercentile": 0.40341,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-18654",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "AWS Command Line Interface",
      "fixedVersion": "2.35.3",
      "fix": "AWS Command Line Interface 2.35.3",
      "url": "https://patchblox.com/security/fix/windows-app/amazon.awscli-2.35.3",
      "released": "2026-06-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "awscli-2",
      "release": "amzn 2023",
      "fixedVersion": "2.36.47-4.amzn2023.0.1",
      "fix": "ALAS2023-2026-3133",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3133",
      "released": "2026-09-28T09:00:00Z"
    }
  ],
  "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"
  }
}