{
  "cveId": "CVE-2026-42189",
  "url": "https://patchblox.com/security/cve/CVE-2026-42189",
  "summary": "CVE-2026-42189 is fixed in rust-russh on 1 platform by DEBIAN-CVE-2026-42189 (version 0.64.1-1), released May 8, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "rust-russh: Russh is a Rust SSH client \u0026 server library",
  "description": "Russh is a Rust SSH client \u0026 server library. Prior to version 0.60.1, a pre-authentication denial-of-service vulnerability exists in the server\u0027s keyboard-interactive authentication handler. A malicious client can crash any russh-based server that implements keyboard-interactive auth (e.g., for 2FA/TOTP) with a single malformed packet, requiring no credentials. This issue has been patched in version 0.60.1.",
  "published": "2026-05-08T20:16:31Z",
  "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": 0.00481,
  "epssPercentile": 0.41744,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rust-russh",
      "release": "Debian 14",
      "fixedVersion": "0.64.1-1",
      "fix": "DEBIAN-CVE-2026-42189",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-42189",
      "released": "2026-05-08T20:16:31Z"
    }
  ],
  "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"
  }
}