Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 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
Action: Patch
AI Analysis

Impact

The vulnerability resides in the InnoDB storage engine of Oracle MySQL Server and MySQL Cluster, involving improper access control (CWE-284) and improper handling of resource bounds (CWE-617). An attacker with high‑privilege who can reach the database via network protocols can trigger a hang or failure that repeatedly crashes the instance. A successful exploitation results in loss of availability but does not affect confidentiality or integrity.

Affected Systems

Oracle MySQL Server and MySQL Cluster versions 9.7.0 through 9.7.3 and 26.7.0 through 26.7.1 are affected.

Risk and Exploitability

The CVSS v3.1 base score of 4.9 marks the flaw as moderate in severity, affecting availability only. EPSS Score of < 1% indicates a very low but nonzero probability of exploitation. The flaw is not currently listed in the CISA KEV catalog. The attack vector is network, requiring the attacker to send crafted protocol traffic to a privileged MySQL component. The threat surface is limited to systems where a high‑privilege attacker has network reach to the database.

Generated by OpenCVE AI on October 23, 2026 at 03:00 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the vendor patch or latest release that addresses the InnoDB denial‑of‑service flaw.
  • Restrict network access to the MySQL ports so that only trusted hosts and protocols can reach the database.
  • Configure application load balancers or fail‑over clustering to automatically restart an affected MySQL instance when a crash is detected.

Generated by OpenCVE AI on October 23, 2026 at 03:00 UTC.

Tracking

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Advisories

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History

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

Type Values Removed Values Added
Title Denial‑of‑Service via InnoDB Access Control in Oracle MySQL mysql: mysql: Denial of Service in InnoDB
Weaknesses CWE-617
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 22 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Title Denial‑of‑Service via InnoDB Access Control in Oracle MySQL

Thu, 22 Oct 2026 11:15:00 +0000

Type Values Removed Values Added
Title Denial-of-Service Vulnerability in MySQL InnoDB
Weaknesses CWE-770

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 Vulnerability in MySQL InnoDB
Weaknesses CWE-770

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: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 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: 2026-10-21T18:36:18.980Z

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

Link: CVE-2026-101629

cve-icon Vulnrichment

Updated: 2026-10-21T18:19:37.915Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:16.960

Modified: 2026-10-21T19:16:51.520

Link: CVE-2026-101629

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-20T21:21:59Z

Links: CVE-2026-101629 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T03:15:16Z

Weaknesses