CVE-2026-101794

Awaiting Analysis Awaiting Analysis - Queue

Denial of Service in MySQL Server

Publication date: 2026-10-20

Last updated on: 2026-10-22

Assigner: Oracle

Description

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

2026-10-20

Last Modified

2026-10-22

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101794

EUVD

EUVD-2026-106195

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	MySQL Server	8.4.0-8.4.12
Oracle Corporation	MySQL Server	9.7.0-9.7.3
Oracle Corporation	MySQL Server	26.7.0-26.7.1
Oracle Corporation	MySQL Cluster	8.0.0-8.0.49
Oracle Corporation	MySQL Cluster	8.4.0-8.4.12
Oracle Corporation	MySQL Cluster	9.7.0-9.7.3
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 denial-of-service (DoS) vulnerability in Oracle MySQL Server and MySQL Cluster. It affects XML processing in the server component and allows low-privileged attackers with network access to cause repeated crashes or hangs, leading to complete service disruption.

Impact Analysis

If you use affected versions of MySQL Server or MySQL Cluster, an attacker could exploit this flaw to crash your database repeatedly, causing downtime and loss of availability for your applications and services.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in MySQL Server and MySQL Cluster, leading to system unavailability. For GDPR, this could impact data availability and integrity requirements. For HIPAA, it may disrupt access to protected health information systems. However, specific compliance impacts depend on implementation and compensating controls.

Mitigation Strategies

Apply the latest security patches from Oracle for affected MySQL Server and MySQL Cluster versions immediately. Disable XML-related features if not required. Restrict network access to MySQL services and monitor for unusual activity.

Hi! I’m here to help you understand CVE-2026-101794. 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...