UBUNTU-CVE-2026-101616: Medium severity ubuntu/mysql-5.5 vulnerability
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). 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 low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/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
Can an unauthenticated network user exploit this issue?
No. Exploitation requires network access and low-level privileges on the affected MySQL Server or MySQL Cluster instance; no user interaction is required.
Is the expected impact limited to availability?
Yes. The provided CVSS vector indicates no confidentiality or integrity impact, while successful exploitation can hang or repeatedly crash the service, resulting in complete denial of service.
Which upstream releases should be checked first?
Check MySQL Server 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1. For MySQL Cluster, also check 8.0.0 through 8.0.49, along with the listed 8.4, 9.7, and 26.7 ranges.