Vulnerability details
CVE-2026-101781
Official description
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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (oracle) | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Oracle Corporation | MySQL Cluster | 26.7.0-26.7.1 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | MySQL Cluster | 8.0.0-8.0.49 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | MySQL Cluster | 8.4.0-8.4.12 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | MySQL Cluster | 9.7.0-9.7.3 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | MySQL Server | 26.7.0-26.7.1 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | MySQL Server | 8.4.0-8.4.12 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | MySQL Server | 9.7.0-9.7.3 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://www.oracle.com/security-alerts/cpuoct2026.html vendor-advisory
Details
- Published
- 2026-10-21
- Last updated
- 2026-10-22
- State
- Published
- Assigner (CNA)
- oracle
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-284Improper Access Control