CVE-2026-47052

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle MySQL Server

Publication date: 2026-07-21

Last updated on: 2026-07-27

Assigner: Oracle

Description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 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).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-21

Last Modified

2026-07-27

Generated

2026-08-11

AI Q&A

2026-07-22

EPSS Evaluated

2026-08-09

NVD

CVE-2026-47052

EUVD

EUVD-2026-46538

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	mysql_server	From 8.4.0 (inc) to 8.4.10 (inc)
oracle	mysql_server	9.7.0
oracle	mysql_server	9.7.1
oracle	mysql_cluster	From 8.0.0 (inc) to 8.0.47 (inc)
oracle	mysql_cluster	From 8.4.0 (inc) to 8.4.10 (inc)
oracle	mysql_cluster	9.7.0
oracle	mysql_cluster	9.7.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a denial-of-service (DoS) vulnerability in Oracle MySQL Server and MySQL Cluster. It allows a high-privileged attacker with network access to cause the database to hang or crash repeatedly, disrupting availability.

Detection Guidance

Detecting this vulnerability requires checking if your MySQL Server or MySQL Cluster version falls within the affected ranges (8.4.0-8.4.10, 9.7.0-9.7.1 for MySQL Server; 8.0.0-8.0.47, 8.4.0-8.4.10, 9.7.0-9.7.1 for MySQL Cluster). Use commands like 'mysql --version' or check your package manager for installed versions.

Impact Analysis

If exploited, it could lead to downtime for MySQL services, affecting applications relying on the database. This may cause disruptions in data access, application performance, or service unavailability.

Compliance Impact

Downtime or data unavailability due to this vulnerability could violate availability requirements in GDPR and HIPAA. Organizations may face compliance penalties if critical data becomes inaccessible.

Mitigation Strategies

Immediately upgrade to a patched version of MySQL Server or MySQL Cluster that is not affected by this vulnerability. Check Oracle's security advisories for the latest updates and apply them as soon as possible.

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