MySQL Server Vulnerability Exposed by Oracle
CVE-2026-34267

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 April 2026

What is CVE-2026-34267?

A vulnerability in Oracle's MySQL Server (versions 8.0.0 to 8.0.45) allows attackers with network access to execute potentially harmful operations. By exploiting this flaw, a high-privileged attacker could deliberately cause the Server to hang or crash repeatedly, resulting in a complete denial of service (DoS). The impact on availability can severely disrupt database operations, making it crucial for users to address this issue promptly.

Affected Version(s)

MySQL Server 8.0.0 <= 8.0.45

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

.