CVE-2026-101769 Oracle Corporation CVE debrief

Who should care

Defenders responsible for MySQL Cluster deployments, particularly those using versions 26.7.0-26.7.1, should assess exposure and prioritize verification and remediation efforts. This includes reviewing network access controls, verifying exposure, and updating MySQL Cluster to a non-affected version if available. Defenders should also review compensating controls for exposed systems and track exceptions and retest remediated assets.

Why it matters

CVE-2026-101769 is a high-severity vulnerability in MySQL Cluster that allows unauthenticated attackers to potentially cause service disruption and gain unauthorized data access. Defenders should prioritize verifying exposure, especially for versions 26.7.0-26.7.1, and assess network access controls.

• Potential unauthorized data access and modification
• Risk of MySQL Cluster service disruption
• Need for verification of MySQL Cluster version and exposure
• Potential requirement for network access control updates

Technical summary

The vulnerability in MySQL Cluster allows unauthenticated attackers with network access via TCP to compromise MySQL Cluster, potentially causing a hang or crash and gaining unauthorized access to some data. This high-severity vulnerability has a CVSS score of 7.0 and can result in service disruption and unauthorized data access. The vulnerability affects MySQL Cluster versions 26.7.0-26.7.1 and can be exploited via TCP. Successful attacks can lead to unauthorized ability to cause a hang or frequently repeatable crash of MySQL Cluster as well as unauthorized update, insert or delete access to some of MySQL Cluster accessible data.

Defensive priority

Defenders should prioritize verifying exposure of MySQL Cluster versions 26.7.0-26.7.1 and assessing network access controls.

Recommended defensive actions

• Verify MySQL Cluster version and exposure
• Assess network access controls to MySQL Cluster
• Review and update MySQL Cluster to a non-affected version if available
• 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
• 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

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but vendor-provided advisory details are limited. The vulnerability affects MySQL Cluster versions 26.7.0-26.7.1 and has a CVSS score of 7.0, indicating high severity. Defenders should verify exposure and assess network access controls. The CVE Program record and NVD entry are official sources for this information.

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.