{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "8.1.0"
              },
              {
                "fixed": "8.1.12"
              },
              {
                "introduced": "9.4.0"
              },
              {
                "fixed": "9.4.5"
              },
              {
                "introduced": "9.5.0"
              },
              {
                "fixed": "9.5.3"
              },
              {
                "introduced": "9.6.0"
              },
              {
                "fixed": "9.6.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "096c9ea12a2144f832e330e9a0f4d3862ca20b9f"
            },
            {
              "fixed": "c91d188755c63cc41237105b5f871a341e5faafd"
            },
            {
              "introduced": "baa88a2450d49dfea42990861283b5ed9d469edf"
            },
            {
              "fixed": "86920d641760552c5aafa5e1d14c93bd30039bc4"
            },
            {
              "introduced": "99d819d25d0b16b3faed901b1fe5c41de7655e9c"
            },
            {
              "fixed": "baf02ba4e27d641a53785ab0c6bc9a9870b237a6"
            },
            {
              "introduced": "9fc0f464a376499ca5859944483f09a32370a85a"
            },
            {
              "fixed": "13049d8b16b195f98246dff4812b5f64c1e5a627"
            }
          ],
          "repo": "https://github.com/mattermost/mattermost-server",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Mattermost versions 8.1.x before 8.1.12, 9.6.x before 9.6.1, 9.5.x before 9.5.3, 9.4.x before 9.4.5 fail to limit the number of active sessions, which allows an authenticated attacker to crash the server via repeated requests to the getSessions API after flooding the sessions table.\n\n",
  "id": "CVE-2024-4183",
  "modified": "2026-03-13T21:46:39.934721244Z",
  "published": "2024-04-26T09:15:12.717Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}