{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:jhu:charm:0.43:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0.43"
              },
              {
                "last_affected": "0.43"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "42e38b121edce8d9dad111a6ac919b420f6b1482"
            },
            {
              "last_affected": "42e38b121edce8d9dad111a6ac919b420f6b1482"
            }
          ],
          "repo": "https://github.com/jhuisi/charm",
          "type": "GIT"
        }
      ],
      "versions": [
        "0.43"
      ]
    }
  ],
  "database_specific": {},
  "details": "In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.",
  "id": "CVE-2021-37588",
  "modified": "2026-07-08T05:37:24.375452116Z",
  "published": "2021-07-30T14:15:18.577Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://eprint.iacr.org/2020/460"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/JHUISI/charm/blob/dev/charm/schemes/abenc/abenc_yct14.py"
    },
    {
      "type": "ADVISORY",
      "url": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/JHUISI/charm/issues/276"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}