Live › vulnerability › CVE-2026-101731
Go to dashboardA flaw in the MySQL Server optimizer lets a high-privileged user with network access hang or repeatedly crash MySQL Server and MySQL Cluster. The sources describe only a denial of service, with no code execution or data theft.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Teams running MySQL Server or MySQL Cluster in the affected version ranges. The attacker needs high privileges, so databases where only tightly controlled administrative accounts can connect are at lower risk. Installations on versions outside the listed ranges are not affected.
No product ranges from the sources yet.
SELECT VERSION(); on the MySQL server and compare against the affected ranges: MySQL Server 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, 26.7.0 to 26.7.1; MySQL Cluster 8.0.0 to 8.0.49, 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, 26.7.0 to 26.7.1.Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). 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).
This page as .md · .json · in your agent: get_signal("CVE-2026-101731")
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.