CVE-2026-101615

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Denial of Service in MySQL Server and MySQL Cluster

Publication date: 2026-10-20

Last updated on: 2026-11-05

Assigner: Oracle

Description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). 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 high privileged attacker with logon to the infrastructure where MySQL Server, MySQL Cluster executes 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 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-05

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101615

EUVD

EUVD-2026-106023

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-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a vulnerability in the MySQL Server and MySQL Cluster products, specifically affecting the InnoDB component. It allows a highly privileged attacker with local access to cause a denial of service (DOS) by crashing or hanging the MySQL Server or Cluster repeatedly.

Detection Guidance

This CVE describes a denial-of-service vulnerability in MySQL Server and MySQL Cluster. Detection requires checking the installed MySQL version against affected ranges (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).

Impact Analysis

If you use affected versions of MySQL Server or MySQL Cluster, an attacker with high privileges could exploit this flaw to disrupt database operations, leading to downtime and loss of availability for your applications relying on MySQL.

Compliance Impact

This vulnerability primarily impacts availability, which could lead to data processing interruptions. For GDPR, this may affect timely data access or processing. For HIPAA, it could disrupt critical healthcare operations. Compliance may require mitigating controls to ensure data availability.

Mitigation Strategies

Upgrade MySQL Server and MySQL Cluster to versions beyond the affected ranges (8.4.12, 9.7.3, 26.7.1 for Server; 8.0.49, 8.4.12, 9.7.3, 26.7.1 for Cluster). Apply patches from Oracle as soon as they are available.

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