{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "2.0.0"
              },
              {
                "fixed": "2.0.43"
              }
            ]
          },
          "events": [
            {
              "introduced": "ae8d9782707b89315194ec70a139fece122b8977"
            },
            {
              "fixed": "540a9011af08ab9843a50e4d14141724a4610b9b"
            },
            {
              "fixed": "13f27e4d920a05d53236139e8b07007acd046a46"
            }
          ],
          "repo": "https://github.com/yiisoft/yii2",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator",
  "id": "CVE-2021-3689",
  "modified": "2026-03-13T21:49:57.153374508Z",
  "published": "2021-08-10T11:15:09.640Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46"
    },
    {
      "type": "EVIDENCE",
      "url": "https://huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}