MySQL Server Vulnerability in Oracle MySQL Product
CVE-2026-22005

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 April 2026

What is CVE-2026-22005?

A vulnerability exists in Oracle's MySQL Server, specifically within the Optimizer component. This flaw impacts multiple versions of MySQL Server and can be easily exploited by attackers with high privileges and network access. Successful exploitation can lead to significant disruptions, including causing the MySQL Server to hang or crash repeatedly, resulting in a complete Denial of Service (DoS). Organizations using affected versions should apply the necessary patches to secure their systems against potential attacks.

Affected Version(s)

MySQL Server 8.0.0 <= 8.0.45

MySQL Server 8.4.0 <= 8.4.8

MySQL Server 9.0.0 <= 9.6.0

References

https://www.oracle.com/security-alerts/cpuapr2026.html
vendor-advisory

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.