{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "1.0.0"
              },
              {
                "last_affected": "3.2.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "9bdf6d7b816d4e55501e13d12dc0d9b53cf16f5c"
            },
            {
              "last_affected": "e0ff35cb1492d1fd09f971ead0426ea6acbbef30"
            }
          ],
          "repo": "https://github.com/zammad/zammad",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in Zammad 3.0 through 3.2. The WebSocket server crashes when messages in non-JSON format are sent by an attacker. The message format is not properly checked and parsing errors not handled. This leads to a crash of the service process.",
  "id": "CVE-2020-10101",
  "modified": "2026-03-13T21:48:30.087580625Z",
  "published": "2020-03-05T01:15:11.367Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://zammad.com/news/security-advisory-zaa-2020-06"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}