Vulnerability record · CVE-2026-46863 · published 17 June 2026

CVE-2026-46863: Oracle mysql cluster uncontrolled resource consumption vulnerability

Oracle · Mysql Cluster

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).

7.5 CVSS 3.1 High EPSS 0.47% · top 61.8% CWE-400 · Uncontrolled resource consumption

7.5CVSS 3.1 base score

0.47%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

1References

18 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Mysql Cluster Oracle

Mysql Server Oracle

References

Link	Tags
https://www.oracle.com/security-alerts/cspujun2026.html	Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-46863), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.