{
  "schema_version": "1.4.0",
  "id": "GHSA-4grf-x53v-r95x",
  "modified": "2024-05-03T18:30:37Z",
  "published": "2024-05-03T18:30:37Z",
  "aliases": [
    "CVE-2021-20556"
  ],
  "details": "IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 could allow a remote user to enumerate usernames due to differentiating error messages on existing usernames.  IBM X-Force ID:  199181.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20556"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/199181"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7149876"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203",
      "CWE-204"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-03T18:15:07Z"
  }
}