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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2026-61109

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Products
Not specified
Affected versions
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Fixed versions
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CVEs
CVE-2026-61109
Confirmed fixed CVEs
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Updated in this feed
3 Nov 2026, 02:59 UTC · Revision 1

Source evidence

CVE-2026-61109

core-osv · Original source

Published 21 Jul 2026, 21:38 UTC

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

osv:CVE-2026-61109
Complete source record
{
  "id": "52365ec919ac1dc1309d2b5fdb4ec4dc8c95ee4961d18cdfabe4e085ee2ac4a4",
  "url": "https://osv.dev/vulnerability/CVE-2026-61109",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-61109",
    "summary": "Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).",
    "evidence": "osv:CVE-2026-61109",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-61109",
      "aliases": [
        "CVE-2026-61109"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mysql/mysql-server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "dc86e412f18b36ce271f791026714e8caa0ec919"
                },
                {
                  "last_affected": "6adc159923b7b6abbe649949551ec25264c2daf9"
                },
                {
                  "introduced": "845d525d49c8027a4d0cdcc43372c96ba295c857"
                },
                {
                  "last_affected": "a26ea1a2109386456db3a11543028ae78a8892c1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.4.0"
                      },
                      {
                        "last_affected": "8.4.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:oracle:mysql_server:9.7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.7.0"
                      },
                      {
                        "last_affected": "9.7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:oracle:mysql_server:9.7.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.7.1"
                      },
                      {
                        "last_affected": "9.7.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.7.0",
            "9.7.1",
            "mysql-cluster-9.7.0",
            "mysql-9.7.0",
            "mysql-cluster-9.7.1",
            "mysql-9.7.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61109.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.297511870Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61109.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-61109",
        "https://www.oracle.com/security-alerts/cpujul2026.html"
      ],
      "provider_metadata": {
        "cna_assigner": "oracle",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.4.0-8.4.10"
                  },
                  {
                    "last_affected": "8.4.0-8.4.10"
                  },
                  {
                    "introduced": "9.7.0-9.7.1"
                  },
                  {
                    "last_affected": "9.7.0-9.7.1"
                  },
                  {
                    "introduced": "8.0.0-8.0.47"
                  },
                  {
                    "last_affected": "8.0.0-8.0.47"
                  },
                  {
                    "introduced": "8.4.0-8.4.10"
                  },
                  {
                    "last_affected": "8.4.0-8.4.10"
                  },
                  {
                    "introduced": "9.7.0-9.7.1"
                  },
                  {
                    "last_affected": "9.7.0-9.7.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61109.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-61109",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492083,
  "published_at": "2026-07-21T21:38:13.077+00:00"
}