{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.20.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b1b6eac6b1e5b830a5cb14f8f4dc690ef3162551"
            }
          ],
          "repo": "https://github.com/cesanta/mjs",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There are memory leaks in frozen_cb() in mjs.c.",
  "id": "CVE-2021-33437",
  "modified": "2026-03-13T21:52:20.865628304Z",
  "published": "2022-07-26T13:15:08.487Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cesanta/mjs/issues/160"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}