CVE-2026-101755: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Client programs). Supported versions that are affected are MySQL Server: 26.7.0-26.7.1; MySQL Cluster: 26.7.0-26.7.1. Difficult to exploit 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker needs network access to the affected MySQL Server or MySQL Cluster service and low-level privileges. User interaction is not required, but exploitation is rated difficult.
What is the operational impact if exploitation succeeds?
A successful attack can cause the affected MySQL Server or MySQL Cluster instance to hang or repeatedly crash, resulting in a complete denial of service. The provided CVSS vector indicates no confidentiality or integrity impact.
Which releases are identified as affected?
The affected supported releases are MySQL Server 26.7.0 through 26.7.1 and MySQL Cluster 26.7.0 through 26.7.1.