Live › vulnerability › CVE-2026-101766
Go to dashboardA flaw in the MySQL Server and MySQL Cluster replication component lets a highly privileged attacker over the network hang or repeatedly crash the database. The sources describe only an availability impact, with no data read or changed.
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.
Only deployments running one of the listed MySQL Server or MySQL Cluster versions are exposed, and the attacker needs high privileges and network access. Installations on other major versions, or on patched releases, are not affected. Teams running managed MySQL services should check with their provider for patch status.
No product ranges from the sources yet.
SELECT @@version; in MySQL and compare against the affected ranges: 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, 26.7.0-26.7.1SHOW REPLICA STATUS; or SHOW REPLICAS;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: Replication). 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. Difficult to exploit 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 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
This page as .md · .json · in your agent: get_signal("CVE-2026-101766")
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.