CVE-2026-101783

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MySQL Router Unauthenticated Data Access Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-10-22

Assigner: Oracle

Description

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). The supported version that is affected is 26.7.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Router accessible data as well as unauthorized access to critical data or complete access to all MySQL Router accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).

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Meta Information

Published

2026-10-20

Last Modified

2026-10-22

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101783

EUVD

EUVD-2026-106184

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	MySQL Router	26.7.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle MySQL Router version 26.7.0. It allows an unauthenticated attacker to remotely access the system via HTTPS and potentially modify or delete critical data or gain unauthorized access to all data accessible by MySQL Router. The attack is difficult to exploit but has high impact on confidentiality and integrity.

Detection Guidance

Detecting this vulnerability requires checking if MySQL Router version 26.7.0 is running on your system. Use commands like 'mysqlrouter --version' or check installed packages via your system's package manager (e.g., 'rpm -qa | grep mysql-router' or 'dpkg -l | grep mysql-router'). Inspect network traffic for HTTPS connections to the MySQL Router interface.

Impact Analysis

If exploited, this vulnerability could lead to unauthorized data modification, deletion, or access. Attackers could steal, alter, or destroy sensitive information managed by MySQL Router, potentially causing data breaches or service disruptions.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR and HIPAA requirements for data confidentiality and integrity. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Upgrade MySQL Router to a version later than 26.7.0 immediately. Restrict network access to the MySQL Router HTTPS interface using firewalls. Monitor logs for suspicious activity and ensure no unauthorized changes have occurred.

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