Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). 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 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).
Published: 2026-07-21
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A flaw in MySQL Server and MySQL Cluster JSON parsing can lead to uncontrolled resource consumption and excessive memory allocation. When an attacker feeds the database with specially crafted JSON data, the server can consume large amounts of CPU and memory, ultimately hanging or repeatedly crashing. This results in a complete denial of service while no data confidentiality or integrity is compromised. The weakness is catalogued as CWE‑400 and CWE‑770.

Affected Systems

Oracle MySQL Server and Oracle MySQL Cluster versions 9.7.0 through 9.7.1 are affected. No other releases are listed as vulnerable.

Risk and Exploitability

The CVSS 3.1 base score of 6.5 indicates a medium severity availability impact. An EPSS score of less than 1% suggests a very low likelihood of exploitation at present, and the vulnerability is not included in the CISA KEV catalog. Attackers with low privileges and network access over supported protocols can exploit the flaw, triggering a crash or hang without requiring elevated permissions.

Generated by OpenCVE AI on August 12, 2026 at 12:07 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Oracle MySQL update that eliminates versions 9.7.0 to 9.7.1, which corrects the JSON parsing logic and mitigates the uncontrolled resource consumption (CWE‑400) and excessive memory allocation (CWE‑770).
  • Configure the database to enforce size limits on JSON inputs, adding explicit bounds checks before parsing to prevent the resource exhaustion scenario associated with CWE‑400. This reduces the risk of a server becoming unresponsive due to large payloads.
  • Implement network controls such as firewalls or security groups to restrict access to MySQL ports, allowing connections only from trusted hosts and thereby limiting the attack surface for low‑privilege attackers.

Generated by OpenCVE AI on August 12, 2026 at 12:07 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 28 Jul 2026 21:15:00 +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 Cluster and Server Vulnerability Causing Crash via Malformed JSON mysql: JSON unspecified vulnerability (CPU Jul 2026)
Weaknesses CWE-770
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 23 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
Title MySQL Cluster and Server Vulnerability Causing Crash via Malformed JSON
Weaknesses CWE-20
CWE-400

Tue, 21 Jul 2026 22:00:00 +0000

Type Values Removed Values Added
Description Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). 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 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).
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': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/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: 2026-07-24T19:08:16.398Z

Reserved: 2026-07-08T15:51:55.582Z

Link: CVE-2026-60718

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-07-21T22:18:12.133

Modified: 2026-07-27T17:59:04.533

Link: CVE-2026-60718

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2026-60718 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T12:15:04Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption

  • CWE-770

    Allocation of Resources Without Limits or Throttling