CVE-2026-101612

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Denial of Service in MySQL Server

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. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server, MySQL Cluster executes to compromise MySQL Server, MySQL Cluster. Successful attacks require human interaction from a person other than the attacker. 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 4.0 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H).

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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-2026-101612

EUVD

EUVD-2026-106020

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 Oracle MySQL Server and MySQL Cluster affecting specific versions. It allows a high-privileged attacker with local access to cause a denial of service (DoS) by crashing the database server repeatedly. The attack requires human interaction from another user.

Detection Guidance

This vulnerability requires manual detection as no automated tools or commands are specified in the provided context. Monitor MySQL Server and Cluster logs for unusual crashes or hangs, particularly after privileged user logins. Check for repeated denial-of-service events in the infrastructure where MySQL operates.

Impact Analysis

If exploited, this vulnerability can cause frequent crashes or hangs in MySQL Server or MySQL Cluster, leading to downtime and disrupting database operations. This impacts availability of services relying on these components.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in MySQL Server or Cluster, leading to system unavailability. For GDPR, this could impact data processing operations requiring availability. For HIPAA, it may disrupt access to protected health information systems. However, the specific compliance impact depends on system configuration and compensating controls.

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) to address the vulnerability.

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