CVE-2026-101800

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Privilege Escalation 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: Security: Privileges). 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 low privileged 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 as well as unauthorized access to critical data or complete access to all MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 6.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).

CVSS Scores

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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-2026-101800

EUVD

EUVD-2026-106201

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 vulnerability in Oracle MySQL Server and MySQL Cluster where a low-privileged attacker with network access can exploit weaknesses in the Server: Security: Privileges component. It allows unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to all accessible data in the affected systems.

Detection Guidance

This vulnerability affects MySQL Server and MySQL Cluster versions listed in the CVE. Detection requires checking the installed version of MySQL against the affected versions (8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 for 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 Cluster). Use commands like 'mysql --version' or check package managers (e.g., 'dpkg -l | grep mysql-server' on Debian/Ubuntu or 'rpm -qa | grep mysql-server' on RHEL/CentOS).

If an affected version is detected, apply the latest patches from Oracle immediately. No specific exploit commands are provided in the CVE details.

Impact Analysis

If you use MySQL Server versions 8.4.0-8.4.12, 9.7.0-9.7.3, or 26.7.0-26.7.1, or MySQL Cluster versions 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, or 26.7.0-26.7.1, an attacker could gain unauthorized access to your data, modify or delete critical information, or steal sensitive data.

Compliance Impact

This vulnerability could lead to unauthorized data access, modification, or deletion, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Unauthorized exposure of sensitive data could result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Upgrade MySQL Server and MySQL Cluster to versions 8.4.13, 9.7.4, or 26.7.2 for Server and 8.0.50, 8.4.13, 9.7.4, or 26.7.2 for Cluster to address the vulnerability.

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