{
  "cveId": "CVE-2026-5078",
  "url": "https://patchblox.com/security/cve/CVE-2026-5078",
  "summary": "CVE-2026-5078 is fixed in node-morgan on 1 platform by DEBIAN-CVE-2026-5078 (version 1.12.0\u002B~1.9.10-1), released June 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-morgan: Impact: The morgan logging middleware\u0027s :remote-user token extracts the Basic auth username from the Authorization re...",
  "description": "Impact: The morgan logging middleware\u0027s :remote-user token extracts the Basic auth username from the Authorization request header and writes it to the log stream without neutralizing control characters. An unauthenticated attacker can send a crafted Authorization Basic header containing CR or LF bytes to inject forged log lines, breaking the one-request-per-line structure of access logs and enabling log forgery against downstream log consumers. The built-in combined, common, default, and short formats are affected, as well as any custom format that references :remote-user. Affected versions: morgan 1.2.0 through 1.10.1. Patches: upgrade to morgan 1.11.0, which neutralizes control characters in the :remote-user token output. Workarounds: use a custom format string that does not include :remote-user.",
  "published": "2026-06-03T08:16:19Z",
  "severity": "medium",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
  "epss": 0.00332,
  "epssPercentile": 0.26579,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-morgan",
      "release": "Debian 14",
      "fixedVersion": "1.12.0\u002B~1.9.10-1",
      "fix": "DEBIAN-CVE-2026-5078",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-5078",
      "released": "2026-06-03T08:16:19Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}