MySQL Server and MySQL Cluster Vulnerability in Oracle MySQL
CVE-2026-101779

2.7LOW

Key Information:

Vendor

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

What is CVE-2026-101779?

An issue exists in Oracle MySQL’s Server: Telemetry component, which can be exploited by an attacker with high privileges and network access. This vulnerability affects supported versions of both MySQL Server and MySQL Cluster, specifically allowing for unauthorized instances to trigger a partial denial of service. The attack can be executed through multiple protocols, posing a risk to operational availability.

Affected Version(s)

MySQL Cluster 8.4.0-8.4.12

MySQL Cluster 9.7.0-9.7.3

MySQL Cluster 26.7.0-26.7.1

References

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

CVSS V3.1

Score:
2.7
Severity:
LOW
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

.