CVE-2026-101751 Oracle Corporation CVE debrief

Who should care

MySQL Server and MySQL Cluster administrators, database security teams, and IT personnel responsible for patch management and vulnerability remediation should assess exposure and apply patches to prevent potential DOS attacks. These teams should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Why it matters

CVE-2026-101751 is a medium-severity vulnerability in MySQL Server and MySQL Cluster that allows high-privileged attackers to cause a denial of service (DOS). MySQL Server and MySQL Cluster administrators should assess exposure and apply patches to prevent potential DOS attacks.

• Denial of service (DOS) attacks against MySQL Server and MySQL Cluster instances may occur if this vulnerability is not patched.
• MySQL Server and MySQL Cluster administrators need to assess exposure and apply patches to prevent potential DOS attacks.
• The vulnerability requires verification of affected versions and application of patches or updates to prevent exploitation.

Technical summary

The vulnerability affects MySQL Server versions 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1 and MySQL Cluster versions 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1. A high-privileged attacker with network access can exploit this vulnerability to cause a denial of service (DOS). The vulnerability has a medium severity and requires verification of affected versions and application of patches or updates to prevent exploitation. MySQL Server and MySQL Cluster administrators should assess exposure and apply patches to prevent potential DOS attacks.

Defensive priority

Medium priority for MySQL Server and MySQL Cluster administrators to assess exposure and apply patches.

Recommended defensive actions

• Assess exposure of MySQL Server and MySQL Cluster instances to this vulnerability.
• Apply patches or updates to affected versions of MySQL Server and MySQL Cluster.
• Monitor for potential denial of service (DOS) attacks against MySQL Server and MySQL Cluster instances.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD vulnerability detail provide information on the affected versions and CVSS score. The vulnerability has a CVSS 3.1 Base Score of 4.9 (Availability impacts) and a CVSS Vector of (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H). MySQL Server and MySQL Cluster administrators should assess exposure and apply patches to prevent potential DOS attacks.

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.