CVE-2026-114652 MongoDB CVE debrief

Who should care

Defenders and developers who use the MongoDB C# Driver in their applications should be aware of this vulnerability and take steps to verify and mitigate it. This includes reviewing application code that uses the update builder and ensuring proper input validation and sanitization.

Why it matters

Defenders should prioritize verifying and upgrading to version 3.13.0 or later of the MongoDB C# Driver, and review application code that uses the update builder to ensure proper input validation and sanitization.

• Potential unauthorized data modifications or removals
• Need for verification and upgrade to version 3.13.0 or later
• Importance of proper input validation and sanitization in application code

Technical summary

The MongoDB C# Driver's update-statement construction component is vulnerable to a data-query-logic neutralization weakness. An application user who can influence the content of values that the application passes into the affected builder surface may cause stored data to be modified or removed in ways the application never intended. This can result in unauthorized integrity impact on the affected application data. The vulnerability can be mitigated by verifying and upgrading to version 3.13.0 or later of the MongoDB C# Driver and reviewing application code that uses the update builder to ensure proper input validation and sanitization.

Defensive priority

Defenders should prioritize verifying and upgrading to version 3.13.0 or later of the MongoDB C# Driver, and review application code that uses the update builder to ensure proper input validation and sanitization.

Recommended defensive actions

• Verify and upgrade to version 3.13.0 or later of the MongoDB C# Driver
• Review application code that uses the update builder to ensure proper input validation and sanitization
• Monitor for and respond to potential unauthorized data modifications or removals
• 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
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information about the vulnerability. The source item and supplemental sources offer additional context and references. Defenders should verify the affected scope and severity, and review application code that uses the update builder to ensure proper input validation and sanitization. The vulnerability is caused by a data-query-logic neutralization weakness in the update-statement construction component of the MongoDB C# Driver. There is no direct loss of confidential

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.