CVE-2026-101743

Analyzed Analyzed - Analysis Complete

Denial of Service in MySQL Server

Publication date: 2026-10-20

Last updated on: 2026-10-28

Assigner: Oracle

Description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: GIS). Supported versions that are affected are MySQL Server: 26.7.0-26.7.1; MySQL Cluster: 26.7.0-26.7.1. 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).

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Meta Information

Published

2026-10-20

Last Modified

2026-10-28

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101743

EUVD

EUVD-2026-106144

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	mysql_cluster	From 26.7.0 (inc) to 26.7.1 (inc)
oracle	mysql_server	From 26.7.0 (inc) to 26.7.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in MySQL Server and MySQL Cluster versions 26.7.0 to 26.7.1. It allows a low-privileged attacker with network access to cause the server or cluster to hang or crash repeatedly, resulting in a denial of service (DOS).

Detection Guidance

This vulnerability affects MySQL Server and MySQL Cluster versions 26.7.0 to 26.7.1. To detect it, check your MySQL version using the command: mysql --version. If your version falls within the affected range, the system is vulnerable.

Impact Analysis

If you use MySQL Server or MySQL Cluster in the affected versions, an attacker could disrupt database operations by causing crashes or hangs. This may lead to downtime, data unavailability, and potential loss of service for applications relying on the database.

Compliance Impact

This vulnerability could impact compliance by causing service disruptions or data unavailability, which may violate availability requirements in GDPR and HIPAA. Downtime or data loss could lead to non-compliance with these regulations.

Mitigation Strategies

Upgrade MySQL Server and MySQL Cluster to versions beyond 26.7.1 to address the vulnerability. Apply the latest patches from Oracle as soon as they are available.

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