CVE-2026-101743: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: GIS). Supported versions that are affected are MySQL Server: 26.7.0-26.7.1; MySQL Cluster: 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
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker needs network access to the affected MySQL Server or MySQL Cluster instance and low-privileged credentials. No user interaction is required, and the vulnerability may be reachable through multiple protocols.
What is the likely impact of successful exploitation?
Successful exploitation can cause the affected MySQL Server or MySQL Cluster to hang or crash repeatedly, resulting in a complete denial of service. The provided information identifies no confidentiality or integrity impact.
Which versions should be prioritized for remediation?
MySQL Server and MySQL Cluster versions 26.7.0 through 26.7.1 are identified as affected. Systems running those supported versions should be prioritized, particularly where low-privileged accounts can connect over the network.
Can this be exploited without authentication?
No. The CVSS vector specifies low privileges required, so the attacker must have an authenticated low-privileged position rather than being entirely unauthenticated.