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).
Published: 2026-07-21
Score: 4.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability lies in the InnoDB component of Oracle MySQL Server and MySQL Cluster. An attacker with high privileges who can reach the database over the network through any supported protocol can exploit this flaw to deliberately trigger a hang or repeatable crash of the server. Such an attack results in a denial of service for all users of the affected database instance.

Affected Systems

Affected systems include Oracle MySQL Server and MySQL Cluster. Versions 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1 of MySQL Server, as well as 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1 of MySQL Cluster are known to be vulnerable.

Risk and Exploitability

The CVSS v3.1 base score of 4.9 reflects a moderate severity focused on availability. The EPSS score of less than 1% indicates a low probability of exploitation at the time of analysis, and the vulnerability is not listed in the CISA KEV catalog. The described attack vector is a network-based exploit that requires high privileges; therefore, the threat is most acute for exposed database instances that are reachable over the network.

Generated by OpenCVE AI on August 2, 2026 at 23:52 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update MySQL Server or MySQL Cluster to a patched or newer release that removes the InnoDB flaw, such as 8.4.11+ or 9.7.2+;
  • If upgrading is not immediately possible, use firewall rules or host–based access controls to limit network connections to the MySQL ports to trusted administrative hosts only;
  • Continuously monitor MySQL logs for unexpected hangs or crash patterns that may indicate an attempted exploitation attempt.

Generated by OpenCVE AI on August 2, 2026 at 23:52 UTC.

Tracking

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Advisories

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History

Tue, 28 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via InnoDB Crash in MySQL Server/Cluster mysql: InnoDB unspecified vulnerability (CPU Jul 2026)
Weaknesses CWE-770
References
Metrics threat_severity

None

 threat_severity

Moderate

Fri, 24 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Title Denial of Service via InnoDB Crash in MySQL Server/Cluster

Thu, 23 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 21 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
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).
First Time appeared Oracle
Oracle mysql Cluster
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Cluster
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-07-23T15:28:10.918Z

Reserved: 2026-05-18T15:55:10.319Z

Link: CVE-2026-47052

cve-icon Vulnrichment

Updated: 2026-07-23T15:28:03.502Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-21T00:00:00Z

Links: CVE-2026-47052 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T00:00:04Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption

  • CWE-770

    Allocation of Resources Without Limits or Throttling