CVE-2026-101775

Analyzed Analyzed - Analysis Complete

Denial of Service in MySQL Server

Publication date: 2026-10-20

Last updated on: 2026-10-30

Assigner: Oracle

Description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Server, MySQL Cluster accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.4 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-20

Last Modified

2026-10-30

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101775

EUVD

EUVD-2026-106176

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	mysql_cluster	From 26.7.0 (inc) to 26.7.1 (inc)
oracle	mysql_cluster	From 8.0.0 (inc) to 8.0.49 (inc)
oracle	mysql_cluster	From 8.4.0 (inc) to 8.4.12 (inc)
oracle	mysql_cluster	From 9.7.0 (inc) to 9.7.3 (inc)
oracle	mysql_server	From 26.7.0 (inc) to 26.7.1 (inc)
oracle	mysql_server	From 8.4.0 (inc) to 8.4.12 (inc)
oracle	mysql_server	From 9.7.0 (inc) to 9.7.3 (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 that allows an unauthenticated attacker with network access to exploit it through multiple protocols. Successful exploitation can lead to unauthorized data modification or deletion, and cause the server to crash repeatedly or hang, resulting in a denial of service.

Detection Guidance

This vulnerability affects MySQL Server and MySQL Cluster versions listed in the CVE. Detection requires checking installed versions against the affected ranges (8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 for MySQL Server; 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 for MySQL Cluster). Use commands like 'mysql --version' or 'mysqld --version' to check versions. If affected, apply patches immediately.

Impact Analysis

If exploited, this vulnerability could allow attackers to alter or delete critical data in your MySQL databases without authentication. It could also cause your database servers to crash frequently, disrupting services and leading to downtime.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data integrity and confidentiality requirements. For HIPAA, it risks exposing protected health information, potentially leading to compliance breaches and legal consequences.

Mitigation Strategies

Upgrade MySQL Server and MySQL Cluster to versions 8.4.13, 9.7.4, or 26.7.2 or later to address the vulnerability.

Hi! I’m here to help you understand CVE-2026-101775. 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...