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).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0031.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Oracle Corporation MySQL Server affected
Version Status Constraints
8.4.0-8.4.12 affected —
9.7.0-9.7.3 affected —
26.7.0-26.7.1 affected —
Oracle Corporation MySQL Cluster affected
Version Status Constraints
8.0.0-8.0.49 affected —
8.4.0-8.4.12 affected —
9.7.0-9.7.3 affected —
26.7.0-26.7.1 affected —

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Project Subscriptions

Vendors Products
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Mysql Server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.oracle.com/security-alerts/cpuoct2026.html cve-icon cve-icon
History

Wed, 21 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

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

Wed, 21 Oct 2026 05:00:00 +0000

Type Values Removed Values Added
Title Denial of Service via InnoDB Vulnerability in MySQL Server and Cluster
Weaknesses CWE-399

Tue, 20 Oct 2026 21:30:00 +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: 8.4.0-8.4.12, 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).
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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-21T18:37:03.333Z

Reserved: 2026-09-28T15:40:09.496Z

Link: CVE-2026-101624

cve-icon Vulnrichment

Updated: 2026-10-21T18:19:29.897Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:16.383

Modified: 2026-10-21T19:16:50.923

Link: CVE-2026-101624

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T04:45:13Z

Weaknesses