usn-8457-1
Vulnerability from osv_ubuntu
Published
2026-06-22 13:11
Modified
2026-06-22 13:11
Summary
mysql-8.0, mysql-8.4 vulnerabilities
Details

It was discovered that MySQL Router incorrectly handled repeated TLS protocol upgrade requests. An unauthenticated remote attacker could possibly use this issue to cause MySQL Router to crash, resulting in a denial of service. (CVE-2026-46862)

It was discovered that MySQL Server incorrectly handled connection authentication. An unauthenticated remote attacker could possibly use this issue to cause MySQL to crash, resulting in a denial of service. (CVE-2026-46863)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-46862",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46863",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libmysqlclient21",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-client",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-client-8.0",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-client-core-8.0",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-router",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-server",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-server-8.0",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-server-core-8.0",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-source-8.0",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-testsuite",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "mysql-testsuite-8.0",
            "binary_version": "8.0.46-0ubuntu0.22.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "mysql-8.0",
        "purl": "pkg:deb/ubuntu/mysql-8.0@8.0.46-0ubuntu0.22.04.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.46-0ubuntu0.22.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0.26-0ubuntu1",
        "8.0.27-0ubuntu0.21.10.1",
        "8.0.28-0ubuntu3",
        "8.0.28-0ubuntu4",
        "8.0.29-0ubuntu0.22.04.1",
        "8.0.29-0ubuntu0.22.04.2",
        "8.0.29-0ubuntu0.22.04.3",
        "8.0.30-0ubuntu0.22.04.1",
        "8.0.31-0ubuntu0.22.04.1",
        "8.0.32-0buntu0.22.04.1",
        "8.0.32-0ubuntu0.22.04.2",
        "8.0.33-0ubuntu0.22.04.1",
        "8.0.33-0ubuntu0.22.04.2",
        "8.0.33-0ubuntu0.22.04.4",
        "8.0.34-0ubuntu0.22.04.1",
        "8.0.35-0ubuntu0.22.04.1",
        "8.0.36-0ubuntu0.22.04.1",
        "8.0.37-0ubuntu0.22.04.3",
        "8.0.39-0ubuntu0.22.04.1",
        "8.0.40-0ubuntu0.22.04.1",
        "8.0.41-0ubuntu0.22.04.1",
        "8.0.42-0ubuntu0.22.04.1",
        "8.0.42-0ubuntu0.22.04.2",
        "8.0.43-0ubuntu0.22.04.1",
        "8.0.43-0ubuntu0.22.04.2",
        "8.0.44-0ubuntu0.22.04.1",
        "8.0.44-0ubuntu0.22.04.2",
        "8.0.45-0ubuntu0.22.04.1",
        "8.0.46-0ubuntu0.22.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-46862",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46863",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libmysqlclient21",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-client",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-client-8.0",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-client-core-8.0",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-router",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-server",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-server-8.0",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-server-core-8.0",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-source-8.0",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-testsuite",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "mysql-testsuite-8.0",
            "binary_version": "8.0.46-0ubuntu0.24.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "mysql-8.0",
        "purl": "pkg:deb/ubuntu/mysql-8.0@8.0.46-0ubuntu0.24.04.3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.46-0ubuntu0.24.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0.34-1ubuntu1",
        "8.0.35-1ubuntu1",
        "8.0.35-1ubuntu2",
        "8.0.36-1",
        "8.0.36-2ubuntu1",
        "8.0.36-2ubuntu2",
        "8.0.36-2ubuntu3",
        "8.0.37-0ubuntu0.24.04.1",
        "8.0.39-0ubuntu0.24.04.1",
        "8.0.39-0ubuntu0.24.04.2",
        "8.0.40-0ubuntu0.24.04.1",
        "8.0.41-0ubuntu0.24.04.1",
        "8.0.42-0ubuntu0.24.04.1",
        "8.0.42-0ubuntu0.24.04.2",
        "8.0.43-0ubuntu0.24.04.1",
        "8.0.43-0ubuntu0.24.04.2",
        "8.0.44-0ubuntu0.24.04.1",
        "8.0.44-0ubuntu0.24.04.2",
        "8.0.45-0ubuntu0.24.04.1",
        "8.0.46-0ubuntu0.24.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-46862",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46863",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libmysqlclient24",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-client",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-client-core",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-router",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-server",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-server-core",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-source",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "mysql-testsuite",
            "binary_version": "8.4.10-0ubuntu0.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "mysql-8.4",
        "purl": "pkg:deb/ubuntu/mysql-8.4@8.4.10-0ubuntu0.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.4.10-0ubuntu0.25.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.4.4-0ubuntu2",
        "8.4.5-0ubuntu1",
        "8.4.5-0ubuntu2",
        "8.4.5-0ubuntu3",
        "8.4.6-0ubuntu1",
        "8.4.6-0ubuntu3",
        "8.4.7-0ubuntu0.25.10.2",
        "8.4.7-0ubuntu0.25.10.3",
        "8.4.8-0ubuntu0.25.10.1",
        "8.4.9-0ubuntu0.25.10.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-46862",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46863",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libmysqlclient24",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-client",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-client-core",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-router",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-server",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-server-core",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-source",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "mysql-testsuite",
            "binary_version": "8.4.10-0ubuntu0.26.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "mysql-8.4",
        "purl": "pkg:deb/ubuntu/mysql-8.4@8.4.10-0ubuntu0.26.04.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.4.10-0ubuntu0.26.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.4.6-0ubuntu3",
        "8.4.7-0ubuntu2",
        "8.4.7-0ubuntu3",
        "8.4.8-0ubuntu1",
        "8.4.9-0ubuntu0.26.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that MySQL Router incorrectly handled repeated TLS\nprotocol upgrade requests. An unauthenticated remote attacker could\npossibly use this issue to cause MySQL Router to crash, resulting in a\ndenial of service. (CVE-2026-46862)\n\nIt was discovered that MySQL Server incorrectly handled connection\nauthentication. An unauthenticated remote attacker could possibly use this\nissue to cause MySQL to crash, resulting in a denial of service.\n(CVE-2026-46863)",
  "id": "USN-8457-1",
  "modified": "2026-06-22T13:11:43Z",
  "published": "2026-06-22T13:11:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8457-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46862"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46863"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "mysql-8.0, mysql-8.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-46862",
    "UBUNTU-CVE-2026-46863"
  ]
}



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