Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON Duality). Supported versions that are affected are MySQL Server: 9.7.0-9.7.1; MySQL Cluster: 9.7.0-9.7.1. Easily exploitable vulnerability allows high 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Published: 2026-07-21
Score: 4.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A flaw in the JSON Duality handling of the MySQL Server and MySQL Cluster components, identified as CWE-284 (Improper Access Control), allows an attacker with network access and high privilege to supply crafted input that causes the database service to hang or crash, resulting in a denial of service that impacts availability while leaving confidentiality and integrity unaffected.

Affected Systems

Oracle MySQL Server and Oracle MySQL Cluster are affected. The vulnerable releases are 9.7.0 through 9.7.1 for both server and cluster components.

Risk and Exploitability

The CVSS base score of 4.9 indicates moderate severity focused on availability. The EPSS score is below 1%, pointing to a low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog. The attack requires an attacker with high privileges over a network connection using one of the supported protocols; the attack vector is inferred to be network-based because the exploit achieves the effect remotely.

Generated by OpenCVE AI on August 2, 2026 at 23:30 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade MySQL Server and MySQL Cluster to a release later than 9.7.1 that incorporates the patch.
  • If an updated release is not yet available, apply the latest Oracle security patch for the MySQL JSON component.
  • Restrict network traffic to the MySQL instances and enforce strict authentication to limit high‑privilege access.
  • Monitor the database logs and system metrics for abnormal restarts or crashes that may occur after exploitation attempts.

Generated by OpenCVE AI on August 2, 2026 at 23:30 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 28 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title MySQL Server and Cluster Denial of Service via JSON Duality mysql: JSON Duality unspecified vulnerability (CPU Jul 2026)
Weaknesses CWE-770
References
Metrics threat_severity

None

 threat_severity

Moderate

Fri, 24 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Title MySQL Server and Cluster Denial of Service via JSON Duality

Thu, 23 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 21 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
Description Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON Duality). Supported versions that are affected are MySQL Server: 9.7.0-9.7.1; MySQL Cluster: 9.7.0-9.7.1. Easily exploitable vulnerability allows high 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
First Time appeared Oracle
Oracle mysql Cluster
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Cluster
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-07-23T17:04:05.514Z

Reserved: 2026-07-08T15:51:40.521Z

Link: CVE-2026-60194

cve-icon Vulnrichment

Updated: 2026-07-23T16:13:54.717Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-21T00:00:00Z

Links: CVE-2026-60194 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-02T23:45:03Z

Weaknesses
  • CWE-284

    Improper Access Control

  • CWE-770

    Allocation of Resources Without Limits or Throttling