CVE-2026-101781
Reported by oracle · Published October 20, 2026
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).
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | MySQL Server | 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 |
| Oracle Corporation | MySQL Cluster | 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 |
| Oracle Corporation | MySQL Server | 26.7.0-26.7.1, 9.7.0-9.7.3, 8.4.0-8.4.12 |
| oracle | mysql_cluster | 26.7.0, 8.0.0, 8.4.0 |
| Oracle Corporation | MySQL Cluster | 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 |
| oracle | mysql_server | 9.7.0, 8.4.0, 26.7.0 |
Timeline
- Oct 20, 2026 CVE Published
- Oct 21, 2026 EPSS Score (5 in total, the first dated here)
- Oct 21, 2026 Coalition ESS Score
- Oct 30, 2026 CVE Updated
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References
- Oracle Advisory vendor-advisory