Is CVE-2026-46861 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-46861 being exploited in the wild.

How severe is CVE-2026-46861?

Critical severity, with a CVSS score of 9.6, published 17 June 2026.

Which products and versions are affected?

Oracle Corporation MySQL NDB Cluster 8.0.11-8.0.46, 8.4.0-8.4.9, 9.0.0-9.7.0.

Is there a fix for CVE-2026-46861?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-46861 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-46861?

Check whether you run Oracle Corporation MySQL NDB Cluster at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-46861: Oracle MySQL NDB Cluster improper access control in NDB Operator

CVE-2026-46861 · Severity: critical · CVSS 9.6 · Published 2026-06-17

A critical vulnerability exists in the Oracle MySQL NDB Operator, a component used to manage high-availability database clusters. A low-privileged attacker can exploit this flaw over a network to gain full access to sensitive database information or modify critical data. This could lead to a complete compromise of the database cluster and potentially impact other connected business systems.

Vendors: Oracle Corporation.

Quick answers

Is CVE-2026-46861 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-46861 being exploited in the wild.
How severe is CVE-2026-46861?: Critical severity, with a CVSS score of 9.6, published 17 June 2026.
Which products and versions are affected?: Oracle Corporation MySQL NDB Cluster 8.0.11-8.0.46, 8.4.0-8.4.9, 9.0.0-9.7.0.
Is there a fix for CVE-2026-46861?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-46861 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-46861?: Check whether you run Oracle Corporation MySQL NDB Cluster at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is classified as an improper access control issue (CWE-284) within the NDB Operator component of Oracle MySQL NDB Cluster. It is exploitable by a low-privileged attacker with network access via HTTP. The flaw is particularly severe because it involves a 'scope change' (Status: Changed in CVSS), meaning an exploit can impact resources beyond the NDB Cluster itself. Successful exploitation allows for the unauthorized creation, deletion, or modification of all cluster-accessible data, as well as full confidentiality impact. Affected versions include the 8.0, 8.4, and 9.0 release streams.

Affected products

Oracle MySQL NDB Cluster 8.0.11-8.0.46, 8.4.0-8.4.9, 9.0.0-9.7.0

Timeline

2026-06-17: disclosed
2026-06-17: advisory: Oracle Critical Patch Update published

References

https://www.oracle.com/security-alerts/cspujun2026.html

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