REDHAT-BUG-2505200: High severity Oracle MySQL Server vulnerability

Published Jul 21, 2026
·
Updated

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows unauthenticated 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 takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Affected Software

2 affected components
Oracle MySQL Server>=8.4.0<=8.4.10, >=9.7.0<=9.7.1
Oracle MySQL Cluster>=8.0.0<=8.0.47, >=8.4.0<=8.4.10, >=9.7.0<=9.7.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Compensating control

    Restrict network access to the MySQL Server/MySQL Cluster instances (especially the Server: Group Replication Plugin functionality) so only trusted systems can reach it, reducing the risk from an unauthenticated, easily exploitable attacker.

Event History

Jul 21, 2026
Data Sourced
via Red Hat·10:21 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

Which supported releases are affected?

Affected MySQL Server releases are 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1. Affected MySQL Cluster releases are 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1.

2

What access does an attacker need to exploit this issue?

The attacker must be able to log on to the infrastructure where MySQL Server or MySQL Cluster is running. The issue is described as unauthenticated, and the CVSS vector assigns no privileges required, but it has local attack-vector requirements.

3

What is the likely impact of successful exploitation?

Successful exploitation can result in takeover of the affected MySQL Server or MySQL Cluster instance. Confidentiality, integrity, and availability impacts are all rated high.

Contact

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