{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.2.104"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1824487b7af0724ae42ef564b82b106c65fc0b31"
            }
          ],
          "repo": "https://github.com/cherokee/webserver",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "In Cherokee through 1.2.104, remote attackers can trigger an out-of-bounds write in cherokee_handler_cgi_add_env_pair in handler_cgi.c by sending many request headers, as demonstrated by a GET request with many \"Host: 127.0.0.1\" headers.",
  "id": "CVE-2019-20800",
  "modified": "2026-04-01T23:09:49.428368656Z",
  "published": "2020-05-18T00:15:11.330Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security.gentoo.org/glsa/202012-09"
    },
    {
      "type": "EVIDENCE",
      "url": "https://logicaltrust.net/blog/2019/11/cherokee.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/cherokee/webserver/issues/1224"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}