Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication Plugin). 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster as well as unauthorized update, insert or delete access to some of MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 7.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H).
References
| Link | Resource |
|---|---|
| https://www.oracle.com/security-alerts/cpuoct2026.html | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
29 Oct 2026, 16:26
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://www.oracle.com/security-alerts/cpuoct2026.html - Vendor Advisory | |
| First Time |
Oracle
Oracle mysql Cluster Oracle mysql Server |
|
| CPE | cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
22 Oct 2026, 18:17
| 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 : 2026-10-29 16:26
NVD link : CVE-2026-101773
Mitre link : CVE-2026-101773
CVE.ORG link : CVE-2026-101773
JSON object : View
Products Affected
oracle
- mysql_server
- mysql_cluster
CWE
CWE-284
Improper Access Control