{
  "cveId": "CVE-2026-4923",
  "url": "https://patchblox.com/security/cve/CVE-2026-4923",
  "summary": "CVE-2026-4923 is fixed in node-path-to-regexp on 1 platform by DEBIAN-CVE-2026-4923 (version 8.4.0-1), released March 26, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-path-to-regexp: Impact:  When using multiple wildcards, combined with at least one parameter, a regular expression can be generated t...",
  "description": "Impact:  When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path.  Unsafe examples:  /*foo-*bar-:baz /*a-:b-*c-:d /x/*a-:b/*c/y  Safe examples:  /*foo-:bar /*foo-:bar-*baz  Patches:  Upgrade to version 8.4.0.  Workarounds:  If you are using multiple wildcard parameters, you can check the regex output with a tool such as https://makenowjust-labs.github.io/recheck/playground/ to confirm whether a path is vulnerable.",
  "published": "2026-03-26T19:17:08Z",
  "severity": "medium",
  "cvss": 5.9,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00359,
  "epssPercentile": 0.29873,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-path-to-regexp",
      "release": "Debian 14",
      "fixedVersion": "8.4.0-1",
      "fix": "DEBIAN-CVE-2026-4923",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-4923",
      "released": "2026-03-26T19:17:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}