Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Security: Privileges). 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. Difficult to exploit 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 creation, deletion or modification access to critical data or all MySQL Server, MySQL Cluster accessible data as well as unauthorized access to critical data or complete access to all MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 6.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).
Published: 2026-10-20
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized data modification and privileged escalation
Action: Apply Patch
AI Analysis

Impact

This vulnerability lies in the privilege handling of Oracle MySQL Server and MySQL Cluster. A low‑privileged attacker with network access can use multiple database protocols to create, delete, or modify critical data, or otherwise gain full access to all data accessible by the server or cluster. The impact compromises confidentiality and integrity without directly affecting availability.

Affected Systems

Oracle MySQL Server versions 8.4.0‑8.4.12, 9.7.0‑9.7.3, and 26.7.0‑26.7.1 and MySQL Cluster versions 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 are affected. Administrators should verify their deployments against this list and consult the October 2026 CPU advisory for details.

Risk and Exploitability

The CVSS base score of 6.8 indicates moderate severity, driven by low attack complexity, low privilege requirement, and no user interaction. Because the EPSS score is not available and the issue is not in the CISA KEV catalog, current exploitation prevalence is unclear, but the existence in an active Oracle CPU suggests it is a known issue. An attacker could leverage any exposed MySQL port to reach the vulnerable component and manipulate privilege data, potentially enabling broader lateral movement within the database environment.

Generated by OpenCVE AI on October 21, 2026 at 03:13 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Download and apply the patch released in the Oracle CPU Oct 2026 advisory (https://www.oracle.com/security-alerts/cpuoct2026.html).
  • Reduce privileges of database user accounts to the minimal level required for their duties and disable any unused administrative accounts.
  • Regularly review database logs for unexpected privilege escalations or unauthorized data modification attempts.

Generated by OpenCVE AI on October 21, 2026 at 03:13 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 10 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

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

Type Values Removed Values Added
Title Low‑Privilege Attacker Can Escalate Privileges and Modify Data in Oracle MySQL Server and Cluster mysql: mysql: unauthorized data access via improper privilege controls
References
Metrics threat_severity

None

 threat_severity

Moderate

Wed, 21 Oct 2026 03:30:00 +0000

Type Values Removed Values Added
Title Low‑Privilege Attacker Can Escalate Privileges and Modify Data in Oracle MySQL Server and Cluster
Weaknesses CWE-269
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: Security: Privileges). 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. Difficult to exploit 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 creation, deletion or modification access to critical data or all MySQL Server, MySQL Cluster accessible data as well as unauthorized access to critical data or complete access to all MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 6.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/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': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-22T15:15:28.267Z

Reserved: 2026-09-28T15:40:09.507Z

Link: CVE-2026-101800

cve-icon Vulnrichment

Updated: 2026-10-22T15:12:37.677Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:35.847

Modified: 2026-10-22T16:17:18.150

Link: CVE-2026-101800

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-20T21:23:01Z

Links: CVE-2026-101800 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T22:00:14Z

Weaknesses
  • CWE-269

    Improper Privilege Management

  • CWE-284

    Improper Access Control