{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.10.7"
              },
              {
                "introduced": "5.6.0"
              },
              {
                "fixed": "5.6.5"
              },
              {
                "introduced": "5.7.0"
              },
              {
                "fixed": "5.7.2"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.8.0-rc1"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.8.0-rc2"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.8.0-rc3"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.8.0-rc4"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "849fafe8f4c3a25b3cd712a580a74aa75a4829e2"
            },
            {
              "introduced": "0c1207215852a8726c3f09dea157d597fec368df"
            },
            {
              "fixed": "7f10b8349810f571de096e2430bcb56ab3527ae1"
            },
            {
              "introduced": "7e5fda43bda67cd061e527b64046f241c2d6cc32"
            },
            {
              "fixed": "2b6f2b07544c63da58a920f3e7791b9f510ff0c2"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "a410b7d6b5a852b99f8bf78ea3cb1392bc49de56"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "f2c4408013a469564661e10c44b6b3b4d8340323"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "6b05e34f0e19715945719d7aefa9bf953f47fa7b"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "24f11a12758fe75ce06269be7f9fb7bb790aec43"
            }
          ],
          "repo": "https://github.com/mattermost/mattermost-server",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via OpenGraph.",
  "id": "CVE-2019-20880",
  "modified": "2026-03-13T21:47:52.692716354Z",
  "published": "2020-06-19T17:15:13.490Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://mattermost.com/security-updates/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}