Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). 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 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

The vulnerability is a flaw in the Optimizer component of Oracle MySQL Server and MySQL Cluster that allows a high‑privileged attacker with network access to cause the server to hang or crash, resulting in a denial of multiple network protocols and a loss of availability without affecting confidentiality or integrity.

Affected Systems

Affected are Oracle MySQL Server versions 8.4.0–8.4.10 and 9.7.0–9.7.1, as well as Oracle MySQL Cluster versions 8.0.0–8.4.10 and 9.7.0–9.7.1. The flaw is present in the Optimizer component of both product families.

Risk and Exploitability

CVSS 3.1 score 4.9 denotes a moderate severity focused on availability. EPSS <1% suggests a low likelihood of exploitation currently, and the vulnerability is not listed in the CISA KEV catalog. Nevertheless, because the exploit requires high privileges and network access, an attacker who meets these prerequisites can easily disrupt service. The available vector is remote over multiple protocols, so the risk is confined to network‑exposed installations.

Generated by OpenCVE AI on August 2, 2026 at 23:46 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Oracle MySQL patch available from the July 2026 security bulletin.
  • Restrict high‑privileged network accounts to only necessary operations and enforce least privilege for MySQL users.
  • Ensure high‑availability and fail‑over mechanisms are in place to reduce downtime during any unexpected hangs or crashes.

Generated by OpenCVE AI on August 2, 2026 at 23:46 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 28 Jul 2026 23:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
CWE-408

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

Type Values Removed Values Added
Title Denial of Service via Optimizer Bug Causing MySQL Server Crash mysql: Optimizer unspecified vulnerability (CPU Jul 2026)
Weaknesses CWE-770
References
Metrics threat_severity

None

 threat_severity

Moderate

Fri, 24 Jul 2026 02:30:00 +0000

Type Values Removed Values Added
Title Denial of Service via Optimizer Bug Causing MySQL Server Crash
Weaknesses CWE-400
CWE-408

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: Optimizer). 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 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: 2026-07-23T17:05:32.239Z

Reserved: 2026-07-08T15:51:40.514Z

Link: CVE-2026-60145

cve-icon Vulnrichment

Updated: 2026-07-23T16:13:43.972Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2026-60145 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T00:00:04Z

Weaknesses
  • CWE-284

    Improper Access Control

  • CWE-770

    Allocation of Resources Without Limits or Throttling