Denial of Service Vulnerability in MySQL Server by Oracle
CVE-2026-22004

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 April 2026

What is CVE-2026-22004?

A vulnerability has been identified in Oracle’s MySQL Server, particularly within the InnoDB component. This issue affects multiple versions, allowing an attacker with advanced privileges and network access to exploit the flaw through various protocols. When exploited, this vulnerability can lead to significant service disruptions, including the possibility of causing the MySQL Server to hang or crash repeatedly, resulting in denial-of-service conditions. Users and administrators are advised to review the available security updates to mitigate potential risks.

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

.