Oracle MySQL Server/MySQL Cluster InnoDB denial of service

Summaryinfo

A vulnerability identified as problematic has been detected in Oracle MySQL Server and 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. This affects an unknown part of the component InnoDB. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2026-101724. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Oracle MySQL Server and 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. This issue affects some unknown functionality of the component InnoDB. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is 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: 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 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. The identification of this vulnerability is CVE-2026-101724 since 09/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Cluster
• MySQL Server

Version

• 8.0.0-8.0.49
• 8.4.0-8.4.12
• 9.7.0-9.7.3
• 26.7.0-26.7.1

License

• open-source

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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Entryinfo

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

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