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CVE-2026-46863 Details

Description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. 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).

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.oracle.com/security-alerts/cspujun2026.html	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	CISA-ADP

Affected Products

Product	Versions
oracle mysql cluster	>= 8.0.11, <= 8.0.46 >= 8.4.0, <= 8.4.9 >= 9.0.0, <= 9.7.0
CPE cpe:2.3:a:oracle:mysql_cluster:::::::: Remediation No remediation found in references.
oracle mysql server	>= 8.4.0, <= 8.4.9 >= 9.0.0, <= 9.7.0
CPE cpe:2.3:a:oracle:mysql_server:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Jun 18, 2026	Initial Analysis	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	New CVE Received	[email protected]