UBUNTU-CVE-2026-101729: Medium severity ubuntu/mysql-5.5 vulnerability
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. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.46-0ubuntu0.22.04.5 - Upgrade
Upgrade
ubuntu/mysql-8.0to a version that resolves this vulnerability.Fixed in 8.0.46-0ubuntu0.24.04.5 - Upgrade
Upgrade
ubuntu/mysql-9.7to a version that resolves this vulnerability.Fixed in 9.7.4-0ubuntu0.26.10.1 - Upgrade
Upgrade
ubuntu/mysql-8.4to a version that resolves this vulnerability.Fixed in 8.4.13-0ubuntu0.26.04.2
Event History
Frequently Asked Questions
What access would an attacker need to exploit this issue?
The attacker needs network access to the affected server through multiple protocols and must have high privileges. No user interaction is required.
What is the expected impact of a successful attack?
A successful attack can cause the MySQL Server or MySQL Cluster service to hang or crash repeatedly, resulting in a complete denial of service. The supplied CVSS vector indicates no confidentiality or integrity impact.
How can I determine whether a deployment is in the affected version ranges?
Check the underlying MySQL Server or MySQL Cluster version. Affected MySQL Server ranges 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 ranges also include 8.0.0 through 8.0.49.