CVE-2026-22009

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. 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 products

Linuxmint, Mysql Server, Rocky Linux, Ubuntu

Oracle Mysql Server

≤ 8.0.45, 8.4.8, 9.6.0

CVSS 3.1

6.5 MEDIUM

EPSS

0.3% (23th percentile)

Weakness

CWE-400

NVD status

Analyzed

Published

2026-04-21