Oracle MySQL Server/MySQL Cluster 9.7.0-9.7.1 InnoDB denial of service

Summaryinfo

A vulnerability was found in Oracle MySQL Server and MySQL Cluster 9.7.0-9.7.1. It has been classified as problematic. This affects an unknown function of the component InnoDB. This manipulation causes denial of service. The identification of this vulnerability is CVE-2026-47008. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Oracle MySQL Server and MySQL Cluster 9.7.0-9.7.1. Affected by this vulnerability is an unknown code block of the component InnoDB. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 9.7.0-9.7.1; MySQL Cluster: 9.7.0-9.7.1. Easily exploitable 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

The advisory is shared at oracle.com. This vulnerability is known as CVE-2026-47008 since 05/18/2026. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/22/2026). MITRE ATT&CK project uses the attack technique T1499 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Cluster
• MySQL Server

Version

• 9.7.0-9.7.1

License

• open-source

Website

• Vendor: https://www.oracle.com

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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