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CVE-2026-46936 Oracle Corporation CVE debrief

A vulnerability in the MySQL Server and MySQL Cluster product of Oracle MySQL (component: Server: DDL) has been identified. The supported versions affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. This difficult-to-exploit vulnerability allows a high-privileged attacker with network access via multiple protocols to compromise MySQL Server and MySQL Cluster. Successful attacks can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server and MySQL Cluster.

Vendor
Oracle Corporation
Product
MySQL Server
CVSS
MEDIUM 4.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-07-27
Advisory published
2026-07-21
Advisory updated
2026-07-27

Who should care

System administrators and security teams responsible for MySQL Server and MySQL Cluster installations, particularly those with versions 8.4.0-8.4.10, 9.7.0-9.7.1, 8.0.0-8.0.47, and 8.4.0-8.4.10, should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability is located in the Server: DDL component of MySQL Server and MySQL Cluster. It has a CVSS 3.1 Base Score of 4.4 (Availability impacts) and a CVSS Vector of (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H). The vulnerability allows a high-privileged attacker with network access via multiple protocols to compromise MySQL Server and MySQL Cluster, potentially leading to a denial-of-service (DOS) condition.

Defensive priority

Medium priority should be given to patching or mitigating this vulnerability, as it can lead to a DOS condition in MySQL Server and MySQL Cluster.

Recommended defensive actions

  • Apply the patches provided by Oracle for MySQL Server and MySQL Cluster versions 8.4.0-8.4.10, 9.7.0-9.7.1, 8.0.0-8.0.47, and 8.4.0-8.4.10.
  • Restrict network access to MySQL Server and MySQL Cluster to only necessary personnel.
  • Monitor MySQL Server and MySQL Cluster for unusual activity or crashes.
  • Consider implementing compensating controls, such as network segmentation or access controls, to limit the attack surface.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-21T22:17:02.160Z and was last modified on 2026-07-27T14:54:30.140Z. The NVD entry is currently Analyzed. The vulnerability has a CVSS 3.1 Base Score of 4.4 (Availability impacts).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46936 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46936

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46936 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46936

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.