CVE-2026-60311

Analyzed Analyzed - Analysis Complete

Denial of Service in MySQL Server

Publication date: 2026-07-21

Last updated on: 2026-07-27

Assigner: Oracle

Description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are MySQL Server: 9.0.0-9.7.1; MySQL Cluster: 9.0.0-9.7.1. 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).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-21

Last Modified

2026-07-27

Generated

2026-08-11

AI Q&A

2026-07-22

EPSS Evaluated

2026-08-09

NVD

CVE-2026-60311

EUVD

EUVD-2026-46726

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	mysql_server	9.7.0
oracle	mysql_server	9.7.1
oracle	mysql_cluster	9.7.0
oracle	mysql_cluster	9.7.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a denial-of-service (DoS) vulnerability in MySQL Server and MySQL Cluster versions 9.0.0 to 9.7.1. It allows a low-privileged attacker with network access to crash the database server repeatedly by exploiting the Optimizer component.

Detection Guidance

This vulnerability affects MySQL Server and MySQL Cluster versions 9.0.0 to 9.7.1. To detect it, check your MySQL version using commands like 'mysql --version' or 'mysqld --version'. If your version falls within the affected range, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability can cause frequent crashes or hangs in MySQL Server or MySQL Cluster, leading to service disruptions and downtime for applications relying on these databases.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in MySQL Server and MySQL Cluster, leading to system unavailability. Such disruptions may violate compliance requirements for data availability under GDPR and HIPAA, which mandate timely access to personal or health data. Unauthorized downtime could result in non-compliance penalties or audit failures.

Mitigation Strategies

Upgrade MySQL Server and MySQL Cluster to versions later than 9.7.1 to address the vulnerability in the Server: Optimizer component.

Hi! I’m here to help you understand CVE-2026-60311. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70