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).
Published: 2026-10-20
Score: 4.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service (Availability Impact)
Action: Apply Patch
AI Analysis

Impact

The vulnerability is located in the InnoDB component of Oracle MySQL Server and MySQL Cluster. It allows a high-privileged attacker with network access via multiple protocols to trigger a hang or repeatable crash, resulting in denial of service. No confidentiality or integrity impact is reported.

Affected Systems

Oracle MySQL Server versions 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, and 26.7.0 to 26.7.1, and Oracle MySQL Cluster versions 8.0.0 to 8.0.49, 8.4.0 to 8.4.12, 9.7.0 to 9.7.3, and 26.7.0 to 26.7.1 are affected. The flaw exists in the InnoDB component across these releases.

Risk and Exploitability

With a CVSS Base Score of 4.9, the risk level is moderate. The EPSS score is less than 1%, indicating a very low probability of exploitation, and it is not listed in the CISA KEV catalog, suggesting limited documented exploitation. The vulnerability is exploitable over the network via multiple protocols and requires high privileges. Because the impact is exclusively availability, the priority is to apply the patch and monitor for intentional performance disruptions.

Generated by OpenCVE AI on October 23, 2026 at 06:18 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle MySQL Server and MySQL Cluster patch that addresses the InnoDB crash issue.
  • Restrict network access to MySQL ports to trusted hosts or VPN‑only connections.
  • Monitor database logs and system metrics for abnormal crash patterns or repeated hangs.

Generated by OpenCVE AI on October 23, 2026 at 06:18 UTC.

Tracking

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Advisories

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History

Thu, 05 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 23 Oct 2026 05:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via InnoDB Crash in Oracle MySQL Server and Cluster mysql: mysql: Denial of Service in InnoDB
Weaknesses CWE-400
References
Metrics threat_severity

None

 threat_severity

Moderate

Wed, 21 Oct 2026 01:00:00 +0000

Type Values Removed Values Added
Title Denial of Service via InnoDB Crash in Oracle MySQL Server and Cluster
Weaknesses CWE-119

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'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-11-05T15:56:37.019Z

Reserved: 2026-09-28T15:40:09.495Z

Link: CVE-2026-101617

cve-icon Vulnrichment

Updated: 2026-11-05T15:54:49.528Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:15.580

Modified: 2026-11-05T16:17:23.540

Link: CVE-2026-101617

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-20T21:21:54Z

Links: CVE-2026-101617 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T06:30:07Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption