CVE-2026-101781

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication GCS). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the MySQL Server, MySQL Cluster executes to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.oracle.com/security-alerts/cpuoct2026.html	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oracle:mysql_cluster::::::::
	cpe:2.3:a:oracle:mysql_cluster::::::::
	cpe:2.3:a:oracle:mysql_cluster::::::::
	cpe:2.3:a:oracle:mysql_cluster::::::::
	cpe:2.3:a:oracle:mysql_server::::::::
	cpe:2.3:a:oracle:mysql_server::::::::
	cpe:2.3:a:oracle:mysql_server::::::::

History

30 Oct 2026, 14:19

Type	Values Removed	Values Added
References	~~() https://www.oracle.com/security-alerts/cpuoct2026.html -~~	() https://www.oracle.com/security-alerts/cpuoct2026.html - Vendor Advisory
CPE		cpe:2.3:a:oracle:mysql_cluster:::::::: cpe:2.3:a:oracle:mysql_server::::::::
First Time		Oracle Oracle mysql Cluster Oracle mysql Server

22 Oct 2026, 16:17

Type	Values Removed	Values Added
CWE		CWE-284

20 Oct 2026, 22:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 22:18

Updated : 2026-10-30 14:19

NVD link : CVE-2026-101781

Mitre link : CVE-2026-101781

CVE.ORG link : CVE-2026-101781

JSON object : View

Products Affected

oracle

mysql_server
mysql_cluster

CWE

CWE-284

Improper Access Control

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