Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Replication). 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 unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
Published: 2026-10-20
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: Remote takeover via unauthenticated replication access
Action: Immediate Patch
AI Analysis

Impact

Oracle MySQL Server and Cluster contain a vulnerability in the replication component that allows an unauthenticated attacker with network access to compromise the database system. The flaw can lead to full control over the server or cluster, resulting in loss of confidentiality, integrity, and availability. The CVSS vector indicates high impact to all CIA triad aspects.

Affected Systems

Affected products include Oracle MySQL Server versions 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1, as well as Oracle MySQL Cluster versions 8.0.0 through 8.0.49, 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1.

Risk and Exploitability

The vulnerability scores a CVSS base score of 7.5, categorizing it as high severity with moderate to high ability to compromise confidentiality, integrity, and availability. No EPSS score is available, and it is not listed in CISA’s KEV catalog. The attack requires network access through multiple protocols and also demands human interaction from a third party, making exploitation complex but still feasible for a skilled adversary.

Generated by OpenCVE AI on October 21, 2026 at 02:21 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle MySQL Server patch to version 8.4.13 or later, 9.7.4 or later, or 26.7.2 or later; apply the corresponding MySQL Cluster patch to version 8.0.50 or later, 8.4.13 or later, 9.7.4 or later, or 26.7.2 or later.
  • If a patch cannot be applied immediately, restrict external network traffic to MySQL services, disable replication interfaces for untrusted connections, and monitor replication logs for anomalous activity.
  • Enforce strong authentication and limit replication privileges to necessary users only, following the best practice for access control to mitigate the underlying CWE-284 weakness.

Generated by OpenCVE AI on October 21, 2026 at 02:21 UTC.

Tracking

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Advisories

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History

Wed, 21 Oct 2026 02:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated network-access vulnerability in Oracle MySQL Server and Cluster leading to takeover
Weaknesses CWE-284
CWE-862

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: Replication). 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 unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/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': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-20T21:22:59.412Z

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

Link: CVE-2026-101796

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T22:18:35.390

Modified: 2026-10-20T22:18:35.390

Link: CVE-2026-101796

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T02:30:13Z

Weaknesses