CVE-2026-19002 MongoDB CVE debrief

Who should care

Defenders responsible for MongoDB BI Connector ODBC Driver installations, especially in environments with untrusted or externally accessible servers, should assess exposure and prioritize updating to version 1.4.9 or later.

Why it matters

CVE-2026-19002 is a high-severity vulnerability in the MongoDB BI Connector ODBC Driver that requires attention from defenders to prevent potential code execution or application crashes. The vulnerability allows for an out-of-bounds write due to a missing bounds check when parsing stored procedure parameter metadata. Defenders should prioritize verifying and updating the driver, especially in environments with untrusted server connections.

• Potential abnormal termination of client applications
• Possible execution of unintended code
• Need for verification of driver version and server connections
• Priority for updating to version 1.4.9 or later

Technical summary

The MongoDB BI Connector ODBC Driver is vulnerable to an out-of-bounds write due to a missing bounds check when parsing stored procedure parameter metadata. This issue requires control over the server the driver connects to or the ability to respond in its place to return malformed metadata, potentially leading to abnormal termination or code execution. The vulnerability is particularly severe in environments with untrusted server connections. Defenders should prioritize verifying and updating the MongoDB BI Connector ODBC Driver to version 1.4.9 or later.

Defensive priority

Defenders should prioritize verifying and updating the MongoDB BI Connector ODBC Driver to version 1.4.9 or later, especially in environments where the driver connects to untrusted or externally accessible servers.

Recommended defensive actions

• Verify the MongoDB BI Connector ODBC Driver version and update to 1.4.9 or later if necessary.
• Review and restrict connections to trusted servers only.
• Monitor client applications for abnormal termination or unexpected behavior.
• Implement additional security measures to prevent or detect malicious server responses.
• Conduct a thorough review of server connections and access controls.
• Perform vulnerability scanning to identify potential exposure.
• Develop an incident response plan in case of exploitation.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its high CVSS score of 8.8 and the affected product, MongoDB BI Connector ODBC Driver. The vendor has released a patch (version 1.4.9) to address this issue.

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.