Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Client programs). 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 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Oracle | MySQL Server | 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 | — |
| Oracle | MySQL Cluster | 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mariadb | No fix yet | — |
| Ubuntu 26.10 | mysql-9.7 | 9.7.4-0ubuntu0.26.10.1 | USN-9046-1 |
| Ubuntu 26.04 LTS | mariadb | No fix yet | — |
| Ubuntu 26.04 LTS | mysql-8.4 | 8.4.13-0ubuntu0.26.04.2 | USN-9046-1 |
| Ubuntu 24.04 LTS | mariadb | No fix yet | — |
| Ubuntu 24.04 LTS | mysql-8.0 | 8.0.46-0ubuntu0.24.04.5 | USN-9046-1 |
| Ubuntu 22.04 LTS | mariadb-10.6 | No fix yet | — |
| Ubuntu 22.04 LTS | mysql-8.0 | 8.0.46-0ubuntu0.22.04.5 | USN-9046-1 |
| Ubuntu 20.04 LTS | mariadb-10.3 | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mariadb-10.1 | No fix yet | — |
| Ubuntu 16.04 LTS | mariadb-10.0 +2 | No fix yet | — |
| Ubuntu 14.04 LTS | mysql-5.5 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | mysql-8.0 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | mysql-5.7 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | mysql-5.7 | No fix yet | — |
Advisories 3
- USN-9046-1 mysql-8.0, mysql-8.4, mysql-9.7 vulnerabilities Ubuntu Security Notices (USN) · Nov 12, 2026
- NCSC-2026-0441 Kwetsbaarheden verholpen in Oracle MySQL NCSC-NL (Netherlands) · Oct 21, 2026
- WID-SEC-2026-4081 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 20, 2026
References
- Oracle Advisory vendor-advisory