{
  "cveId": "CVE-2023-38199",
  "url": "https://patchblox.com/security/cve/CVE-2023-38199",
  "summary": "CVE-2023-38199 is fixed in modsecurity-crs on 1 platform, first by DEBIAN-CVE-2023-38199, released July 13, 2023. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "modsecurity-crs: coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers...",
  "description": "coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka \u0022Content-Type confusion\u0022 between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.",
  "published": "2023-07-13T03:15:10Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00748,
  "epssPercentile": 0.55136,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "modsecurity-crs",
      "release": "Debian 11.6 (bullseye)",
      "fixedVersion": "3.3.4-1~deb11u2",
      "fix": "DLA-4488-1",
      "url": "https://patchblox.com/security/fix/linux/dla-4488-1",
      "released": "2026-02-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "modsecurity-crs",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.3.4-1\u002Bdeb12u2",
      "fix": "DEBIAN-CVE-2023-38199",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-38199",
      "released": "2023-07-13T03:15:10Z"
    },
    {
      "platform": "linux",
      "product": "modsecurity-crs",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.3.5-1",
      "fix": "DEBIAN-CVE-2023-38199",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-38199",
      "released": "2023-07-13T03:15:10Z"
    },
    {
      "platform": "linux",
      "product": "modsecurity-crs",
      "release": "Debian 14",
      "fixedVersion": "3.3.5-1",
      "fix": "DEBIAN-CVE-2023-38199",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-38199",
      "released": "2023-07-13T03:15:10Z"
    }
  ],
  "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"
  }
}