CVE-2026-19004 MongoDB CVE debrief

Who should care

Defenders and administrators responsible for MongoDB BI Connector ODBC Driver installations, especially in environments where connections to untrusted or impersonated database servers are possible, should assess exposure and prioritize patching.

Why it matters

Defenders should prioritize verifying and applying the vendor-provided patch for CVE-2026-19004, assessing exposure in environments where untrusted database servers may be accessed, and reviewing configurations to ensure secure connections. Evidence is limited to CVE and NVD records.

• Potential process termination due to memory-safety issues.
• Possible disclosure of process memory.
• Under certain conditions, potential for arbitrary code execution.
• Verification of patch application and configuration review are necessary.

Technical summary

The MongoDB BI Connector ODBC Driver is vulnerable to a memory-safety issue when processing output parameters from a stored procedure. This issue can be triggered by connecting to an untrusted or impersonated database server that returns crafted metadata, potentially resulting in process termination, disclosure of process memory, or, under certain conditions, arbitrary code execution. The vulnerability highlights the importance of secure connections to database servers and the need for defenders to prioritize patching and configuration reviews.

Defensive priority

Defenders should prioritize verifying and applying the vendor-provided patch (version 1.4.9) and assess exposure in their environments, especially where untrusted or impersonated database servers may be accessed.

Recommended defensive actions

• Verify and apply the vendor-provided patch (version 1.4.9) for the MongoDB BI Connector ODBC Driver.
• Assess exposure in environments where untrusted or impersonated database servers may be accessed.
• Review and update configurations to ensure connections to trusted database servers only.
• 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.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its potential impact and affected versions. However, specific details about exploitation are limited. Evidence is based on CVE and NVD records, with limited source detail. Defenders should verify patch application and review configurations to ensure secure connections, considering the potential for process termination, memory disclosure, or arbitrary code execution.

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.