{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:zeek:zeek:4.1.0:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "4.1.0"
              },
              {
                "last_affected": "4.1.0"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "a475cc7a293cd3aa4ea7a3f431a7d13748799828"
            },
            {
              "last_affected": "a475cc7a293cd3aa4ea7a3f431a7d13748799828"
            }
          ],
          "repo": "https://github.com/zeek/zeek",
          "type": "GIT"
        }
      ],
      "versions": [
        "4.1.0"
      ]
    }
  ],
  "database_specific": {},
  "details": "An issue was discovered in zeek version 4.1.0. There is a HTTP request splitting vulnerability that will invalidate any ZEEK HTTP based security analysis. NOTE: the vendor's position is that the observed behavior is intended",
  "id": "CVE-2021-41732",
  "modified": "2026-07-08T05:36:44.075262825Z",
  "published": "2021-09-29T19:15:07.917Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://github.com/zeek/zeek/issues/1798"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}