CVE-2026-101810

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Denial of Service in MySQL Router

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. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

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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-2026-101810

EUVD

EUVD-2026-106211

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 denial-of-service (DoS) vulnerability in Oracle MySQL Router version 26.7.0. An unauthenticated attacker can remotely exploit it by sending specially crafted requests over the network. The flaw allows the attacker to crash the MySQL Router service repeatedly, making it unavailable for legitimate users.

Detection Guidance

This vulnerability affects MySQL Router version 26.7.0 and can be exploited remotely without authentication. To detect it, check the installed version of MySQL Router using the command: mysqlrouter --version. If the version is 26.7.0, the system is vulnerable.

Impact Analysis

If you use MySQL Router 26.7.0, an attacker could disrupt your database operations by causing the service to crash. This would prevent applications from connecting to the database, leading to downtime and potential data access issues.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in MySQL Router, leading to service unavailability. For GDPR, this could impact data processing operations requiring continuous availability. HIPAA requires safeguards for data accessibility; prolonged outages may violate compliance.

Mitigation Strategies

Upgrade MySQL Router to a version unaffected by this vulnerability. Since the affected version is 26.7.0, apply the latest patch or update provided by Oracle to resolve the issue.

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