{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0.20.0"
              },
              {
                "fixed": "4.1.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "57fe596f0aa8be564996f035235b7744d673f3de"
            },
            {
              "fixed": "20cd592f30f1ae4fbb391bb4811d24833e60fb7c"
            }
          ],
          "repo": "https://github.com/graylog2/graylog2-server",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).",
  "id": "CVE-2021-37759",
  "modified": "2026-03-13T21:48:05.544480114Z",
  "published": "2021-07-31T18:15:07.837Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.graylog.org/post/announcing-graylog-v4-1-2"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}