CVE-2026-101753 Oracle Corporation CVE debrief

Who should care

MySQL Server and MySQL Cluster administrators, security teams, and IT personnel responsible for patch management and vulnerability remediation should review and apply patches, restrict network access, and monitor for unusual activity. These stakeholders should prioritize patching and mitigation efforts due to the medium severity of the vulnerability and potential impact on high-availability and business-critical systems.

Why it matters

CVE-2026-101753 is a medium-severity vulnerability in MySQL Server and MySQL Cluster that allows high-privileged attackers to cause a denial of service. MySQL Server and MySQL Cluster administrators should review and apply patches, restrict network access, and monitor for unusual activity.

• Potential denial of service (complete DOS) of MySQL Server and MySQL Cluster
• Requires verification of affected versions and patch application
• Medium priority for patching and mitigation
• Potential impact on high-availability and business-critical systems

Technical summary

The vulnerability affects MySQL Server and MySQL Cluster versions 9.7.0-9.7.3 and 26.7.0-26.7.1. It allows high-privileged attackers with network access to cause a denial of service (complete DOS). The CVSS score is 4.4 (Medium severity). Successful attacks can result in unauthorized ability to cause a hang or frequently repeatable crash of MySQL Server and MySQL Cluster. The vulnerability has a medium priority for patching and mitigation, requiring verification of affected versions and patch application, as well as monitoring for unusual activity.

Defensive priority

Medium priority for MySQL Server and MySQL Cluster administrators

Recommended defensive actions

• Review and apply patches for MySQL Server and MySQL Cluster versions 9.7.0-9.7.3 and 26.7.0-26.7.1
• Restrict network access to high-privileged users
• Monitor MySQL Server and MySQL Cluster for unusual activity
• Verify affected versions and apply patches
• Review compensating controls for exposed systems
• Track exceptions and retest remediated assets
• Perform thorough vulnerability assessment and penetration testing to identify potential attack vectors

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, affected versions, and CVSS score. The vulnerability allows high-privileged attackers with network access to cause a denial of service (complete DOS) in MySQL Server and MySQL Cluster. Evidence is based on official CVE and NVD sources, with limitations on known affected scope and potential operational impacts.

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.