Server Vulnerability in MySQL Database from Oracle
CVE-2026-101781

8.8HIGH

Key Information:

Vendor

Oracle
Status
Mysql Server
Mysql Cluster
Vendor
CVE Published:
20 October 2026

What is CVE-2026-101781?

A vulnerability in the MySQL Server and MySQL Cluster components allows an unauthenticated attacker with physical access to the communication segment to compromise the database systems. A successful exploitation can lead to a complete takeover of the MySQL Server or Cluster, resulting in severe confidentiality, integrity, and availability impacts for users and organizations. It is imperative for users of affected versions, ranging from MySQL Server 8.4.x to 9.7.x, to apply the necessary patches to mitigate this risk.

Affected Version(s)

MySQL Cluster 8.0.0-8.0.49

MySQL Cluster 8.4.0-8.4.12

MySQL Cluster 9.7.0-9.7.3

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.