MySQL Connectors — security advisory

{
  "id": "327bbdab431e5bd5bc08dea7ca6a5da7c869c36d889e8a9f119714c7be414e00",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-83404",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-83404",
    "summary": "Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Python). The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).",
    "evidence": "cve:CVE-2026-83404",
    "products": [
      {
        "name": {
          "value": "MySQL Connectors",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-83404",
      "aliases": [
        "CVE-2026-83404"
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 7.5,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "integrityImpact": "NONE",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "NONE",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "vendor": "Oracle Corporation",
          "product": "MySQL Connectors",
          "versions": [
            {
              "status": "affected",
              "version": "26.7.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "modified": "2026-10-27T18:43:16.741Z",
      "provider": "cve",
      "references": [
        "https://www.oracle.com/security-alerts/cpuoct2026.html"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-83404",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-27T18:42:37.795529Z"
                  }
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "lang": "en",
                    "type": "CWE",
                    "cweId": "CWE-306",
                    "description": "CWE-306 Missing Authentication for Critical Function"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-27T18:43:16.741Z"
            }
          }
        ],
        "cna": {
          "orgId": "43595867-4340-4103-b7a2-9a5208d29a85",
          "shortName": "oracle",
          "dateUpdated": "2026-10-20T21:23:48.172Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-83404",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 398085,
  "published_at": "2026-10-20T21:23:48.172+00:00"
}