Vulnerability Description
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).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oracle | Mysql Cluster | >= 8.0.0, <= 8.0.49 |
| Oracle | Mysql Server | >= 8.4.0, <= 8.4.12 |
Related Weaknesses (CWE)
References
- https://www.oracle.com/security-alerts/cpuoct2026.htmlVendor Advisory
FAQ
What is CVE-2026-101773?
CVE-2026-101773 is a vulnerability with a CVSS score of 7.1 (HIGH). 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....
How severe is CVE-2026-101773?
CVE-2026-101773 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-101773?
Check the references section above for vendor advisories and patch information. Affected products include: Oracle Mysql Cluster, Oracle Mysql Server.