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

An exploitable flaw exists in the Server: JSON Duality and MySQL Cluster. The weakness allows high‑privileged attackers with network access to cause the database system to hang or crash repeatedly, resulting in a complete denial of service. The vulnerability is attributed to improper authorization (CWE‑284) and contributes to resource exhaustion. It has a CVSS 3.1 score of 4.9 and only affects availability.

Affected Systems

Oracle MySQL Server and Oracle MySQL Cluster are impacted when running versions 9.7.0, 9.7.1, or any intervening builds that include the JSON Duality component. These environments expose the database service over multiple network protocols and provide privileged credentials to attackers within the network.

Risk and Exploitability

The CVSS score indicates a moderate impact but the EPSS score is below 1 % and the vulnerability is not listed in CISA’s KEV catalog. Nonetheless, an attacker with high privileges and network reach can reliably trigger a crash, so the risk remains real for exposed systems. The attack vector is over the network and requires elevated privileges to send malicious JSON requests.

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

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Oracle issue for all affected 9.7.0 and 9.7.1 releases
  • If an immediate patch is unavailable, limit access to the MySQL services to trusted internal networks and enforce the lowest possible privileges for database connections
  • Monitor MySQL logs and system performance for repeated hangs or crashes that may signal an exploitation attempt

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 23:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-400

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

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

None

 threat_severity

Moderate

Fri, 24 Jul 2026 02:00:00 +0000

Type Values Removed Values Added
Title MySQL Server and Cluster JSON Duality Availability Crash
Weaknesses CWE-20
CWE-400

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: 2026-07-23T17:03:57.285Z

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

Link: CVE-2026-60195

cve-icon Vulnrichment

Updated: 2026-07-23T16:13:56.420Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2026-60195 - 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