CVE-2026-60311: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are MySQL Server: 9.0.0-9.7.1; MySQL Cluster: 9.0.0-9.7.1. 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
MySQL Serverto a version that resolves this vulnerability.Fixed in 9.7.1 - Upgrade
Upgrade
MySQL Clusterto a version that resolves this vulnerability.Fixed in 9.7.1 - Compensating control
Mitigate the network-accessible DoS risk by restricting inbound network access to the MySQL Server/MySQL Cluster endpoints to only necessary clients/protocols (per your network policy), since the vulnerability is exploitable via network access over multiple protocols.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-60311?
The severity of CVE-2026-60311 is medium with a CVSS score of 6.5.
How do I fix CVE-2026-60311?
To fix CVE-2026-60311, upgrade MySQL Server or MySQL Cluster to versions 9.7.2 or later.
What are the affected versions of CVE-2026-60311?
The affected versions for CVE-2026-60311 are MySQL Server and MySQL Cluster versions 9.0.0 to 9.7.1.
What type of vulnerability is CVE-2026-60311?
CVE-2026-60311 is an easily exploitable vulnerability that allows a low privileged attacker network access.
What component is affected by CVE-2026-60311?
CVE-2026-60311 affects the Server: Optimizer component of Oracle MySQL.