REDHAT-BUG-2557851: Medium severity Oracle MySQL Server vulnerability

Published Oct 21, 2026
·
Updated

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Components Services). 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 takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Affected Software

2 affected components
Oracle MySQL Server>=8.4.0<=8.4.12, >=9.7.0<=9.7.3, >=26.7.0<=26.7.1
Oracle MySQL Cluster>=8.0.0<=8.0.49, >=8.4.0<=8.4.12, >=9.7.0<=9.7.3, >=26.7.0<=26.7.1

Event History

Oct 21, 2026
Data Sourced
via Red Hat·12:33 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

Who can exploit this issue?

An attacker needs high privileges and a logon to the infrastructure where MySQL Server or MySQL Cluster runs. The attack vector is local, and no user interaction is required.

2

Which deployments are affected?

Affected supported versions include MySQL Server 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1. MySQL Cluster is affected in versions 8.0.0 through 8.0.49, 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1.

3

What could a successful attacker achieve?

Successful exploitation can result in takeover of MySQL Server or MySQL Cluster, with high impacts to confidentiality, integrity, and availability.

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