Vulnerability · Published Oct 20, 2026 · Assigned by oracle
CVE-2026-101627
Medium 4.4
In plain English
A medium-severity improper access control in MySQL Cluster from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Official description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). 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. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols 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. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:24.04:LTS | mariadb | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:26.04:LTS | mariadb | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:26.10 | mariadb | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:22.04:LTS | mariadb-10.6 | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:22.04:LTS | mysql-8.0 | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:24.04:LTS | mysql-8.0 | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:26.04:LTS | mysql-8.4 | no fix listed | UBUNTU-CVE-2026-101627 |
| Ubuntu:26.10 | mysql-9.7 | no fix listed | UBUNTU-CVE-2026-101627 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | MySQL Server | 8.4.0-8.4.129.7.0-9.7.326.7.0-26.7.1 |
| Oracle Corporation | MySQL Cluster | 8.0.0-8.0.498.4.0-8.4.129.7.0-9.7.326.7.0-26.7.1 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
References
- Oracle Advisory vendor-advisory