Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). 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 low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).
Published: 2026-10-20
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized data read of MySQL Server and Cluster
Action: Assess Impact
AI Analysis

Impact

The flaw resides in the connection‑handling component of the MySQL Server and MySQL Cluster, allowing an attacker with low privileges to read a subset of data that would normally be accessible to that account. The vulnerability does not affect integrity or availability, but it lowers confidentiality; the CVSS v3.1 base score of 4.3 reflects a network attacker, low privilege, and no user interaction. This flaw is related to improper access control (CWE‑284) and additional access control weaknesses (CWE‑488).

Affected Systems

Oracle Corporation’s MySQL Server and MySQL Cluster are affected. Vulnerable releases include MySQL Server 9.7.0‑9.7.3 and 26.7.0‑26.7.1, and MySQL Cluster 9.7.0‑9.7.3 and 26.7.0‑26.7.1.

Risk and Exploitability

An attacker who can reach the database service over any supported network protocol and possesses a low‑privilege account can trigger this flaw simply by connecting. The EPSS score of 0.00295 indicates very low likelihood of exploitation, and the vulnerability is not listed in the CISA KEV catalog; however, the CVSS score of 4.3 and the guaranteed read access to protected data classify it as a moderate‑risk issue for systems holding sensitive information.

Generated by OpenCVE AI on October 23, 2026 at 05:45 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply any security update from Oracle when available.
  • Restrict network access to MySQL instances so that only trusted hosts can connect.
  • Remove unnecessary read privileges from database accounts and enforce strict access controls.

Generated by OpenCVE AI on October 23, 2026 at 05:45 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 23 Oct 2026 03:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

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

Type Values Removed Values Added
Title Low Privilege Data Exposure in Oracle MySQL Server and Cluster mysql: mysql: unauthorized read access via connection handling
Weaknesses CWE-488
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 22 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Wed, 21 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
Title Low Privilege Data Exposure in Oracle MySQL Server and Cluster
Weaknesses CWE-200
CWE-284

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: Server: Connection Handling). 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 low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).
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': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-22T17:46:33.803Z

Reserved: 2026-09-28T15:40:09.502Z

Link: CVE-2026-101722

cve-icon Vulnrichment

Updated: 2026-10-22T17:43:25.934Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:26.950

Modified: 2026-10-22T18:17:16.070

Link: CVE-2026-101722

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-20T21:22:31Z

Links: CVE-2026-101722 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T06:00:13Z

Weaknesses
  • CWE-284

    Improper Access Control

  • CWE-488

    Exposure of Data Element to Wrong Session