CVE-2026-101769

Awaiting Analysis Awaiting Analysis - Queue

Denial of Service in MySQL Cluster

Publication date: 2026-10-20

Last updated on: 2026-10-22

Assigner: Oracle

Description

Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: General). Supported versions that are affected are 26.7.0-26.7.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCP to compromise MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Cluster as well as unauthorized update, insert or delete access to some of MySQL Cluster accessible data and unauthorized read access to a subset of MySQL Cluster accessible data. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-20

Last Modified

2026-10-22

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101769

EUVD

EUVD-2026-106170

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	MySQL Cluster	26.7.0-26.7.1

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 Oracle MySQL Cluster versions 26.7.0 to 26.7.1. It allows an unauthenticated attacker with network access to cause a denial of service (DOS) or crash the MySQL Cluster repeatedly. The attacker could also read, update, insert, or delete some data within the cluster.

Detection Guidance

Detection of this vulnerability requires checking for vulnerable versions of MySQL Cluster (26.7.0 to 26.7.1). Inspect installed MySQL Cluster software versions using package managers like 'rpm -qa | grep mysql-cluster' or 'dpkg -l | grep mysql-cluster' depending on your OS. Monitor network traffic for unusual TCP connections targeting MySQL Cluster ports (default 1186).

Impact Analysis

If you use affected MySQL Cluster versions, an attacker could disrupt database operations by causing crashes or hangs, leading to downtime. They may also access or modify sensitive data stored in the cluster.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data privacy) requirements. Compliance may be compromised if sensitive data is exposed or altered due to the vulnerability.

Mitigation Strategies

Upgrade MySQL Cluster to a version later than 26.7.1 to address the vulnerability. Ensure the system is updated with the latest patches from Oracle. Restrict network access to the MySQL Cluster service via TCP to trusted sources only.

Hi! I’m here to help you understand CVE-2026-101769. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...