MySQL Server Vulnerability in Oracle MySQL Affects Network Access
CVE-2026-35240

4.9MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Vendor
CVE Published:
21 April 2026

What is CVE-2026-35240?

An exploitable vulnerability exists in the MySQL Server component of Oracle MySQL that allows a high-privileged attacker with network access to cause significant disruption. Through targeted attacks, the vulnerability can lead to the MySQL Server becoming unresponsive or crashing repeatedly, resulting in denial of service conditions. This situation can severely impact availability for users relying on the MySQL database service, demanding prompt mitigation measures.

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

.