UBUNTU-CVE-2026-101772: High severity ubuntu/mysql-5.5 vulnerability

Published Oct 20, 2026
·
Updated

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Client programs). 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 of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Affected Software

17 affected componentsFixes available
ubuntu/mysql-5.5*
ubuntu/mysql-5.7*
ubuntu/mariadb-10.0*
ubuntu/percona-server-5.6*
ubuntu/percona-xtradb-cluster-5.6*
ubuntu/mysql-5.7*
ubuntu/mariadb-10.1*
ubuntu/mysql-8.0*
ubuntu/mariadb-10.3*
ubuntu/mariadb-10.6*
ubuntu/mysql-8.0<8.0.46-0ubuntu0.22.04.5
8.0.46-0ubuntu0.22.04.5
ubuntu/mariadb*
ubuntu/mysql-8.0<8.0.46-0ubuntu0.24.04.5
8.0.46-0ubuntu0.24.04.5
ubuntu/mariadb*
ubuntu/mysql-9.7<9.7.4-0ubuntu0.26.10.1
9.7.4-0ubuntu0.26.10.1
ubuntu/mariadb*
ubuntu/mysql-8.4<8.4.13-0ubuntu0.26.04.2
8.4.13-0ubuntu0.26.04.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/mysql-8.0 to a version that resolves this vulnerability.

    Fixed in 8.0.46-0ubuntu0.22.04.5
  2. Upgrade

    Upgrade ubuntu/mysql-8.0 to a version that resolves this vulnerability.

    Fixed in 8.0.46-0ubuntu0.24.04.5
  3. Upgrade

    Upgrade ubuntu/mysql-9.7 to a version that resolves this vulnerability.

    Fixed in 9.7.4-0ubuntu0.26.10.1
  4. Upgrade

    Upgrade ubuntu/mysql-8.4 to a version that resolves this vulnerability.

    Fixed in 8.4.13-0ubuntu0.26.04.2

Event History

Oct 20, 2026
CVE Published
via OSV·10:18 PM
Data Sourced
via OSV·10:18 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What access does an attacker need to exploit this issue?

An attacker does not need authentication or user interaction, but must have network access to the affected MySQL Server or MySQL Cluster through multiple protocols. Exploitation is rated difficult, indicating high attack complexity.

2

What is the potential impact of a successful attack?

A successful attack can result in takeover of MySQL Server or MySQL Cluster. The stated impacts include high confidentiality, integrity, and availability impact.

3

Which upstream versions are identified as affected?

Affected MySQL Server versions are 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1. Affected MySQL Cluster versions are 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.

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