CVE-2026-46861 Oracle Corporation CVE debrief

Who should care

Administrators and users of MySQL NDB Cluster, especially those with low-privileged access, should be aware of this vulnerability and take immediate action to mitigate the risk. This includes reviewing the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Affected operators, platforms, vulnerability-management teams, and security teams should prioritize patching and compensating controls.

Technical summary

The vulnerability has a CVSS 3.1 Base Score of 9.6, indicating a critical severity level. The CVSS Vector is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N). The vulnerability is caused by a weakness in the Cluster: NDB Operator component of MySQL NDB Cluster. Successful attacks can result in unauthorized creation, deletion, or modification access to critical data or all MySQL NDB Cluster accessible data, as well as unauthorized access to critical data or complete access to all MySQL NDB Cluster accessible data. The vulnerability allows low-privileged attackers with network access via HTTP to compromise MySQL NDB Cluster.

Defensive priority

High

Recommended defensive actions

• Apply the latest security patches and updates to MySQL NDB Cluster
• Restrict network access to MySQL NDB Cluster to only necessary personnel
• Monitor MySQL NDB Cluster for suspicious activity
• Implement additional security measures, such as multi-factor authentication and intrusion detection systems
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-06-17T10:54:03.760Z and was last modified on 2026-06-18T22:42:02.397Z. The NVD entry is currently Analyzed. There is limited information available about the specific details of the vulnerability, and defenders should verify the affected scope and severity with the vendor. The vulnerability affects MySQL NDB Cluster versions 8.0.11-8.0.46, 8.4.0-8.4.9, and 9.0.0-9.7.0.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.