CVE-2026-101796

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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: 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 require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

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-2026-101796

EUVD

EUVD-2026-106197

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 MySQL Server and MySQL Cluster where an unauthenticated attacker can exploit it through network access. It requires human interaction from someone other than the attacker. Successful exploitation could lead to full compromise of the MySQL Server or Cluster.

Impact Analysis

If exploited, this vulnerability could allow an attacker to take over the MySQL Server or Cluster, leading to unauthorized access, data theft, data manipulation, or service disruption. This could affect data confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements such as GDPR or HIPAA. Organizations using affected MySQL versions may face legal and regulatory penalties due to compromised data.

Mitigation Strategies

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

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