CVE-2026-88025 MongoDB CVE debrief

Who should care

Defenders responsible for MongoDB C# Driver deployments, particularly those using GridFS, should assess exposure and verify remediation. This includes developers, DevOps teams, and security professionals managing MongoDB C# Driver applications.

Why it matters

CVE-2026-88025 is a medium-severity vulnerability in the MongoDB C# Driver's GridFS component. An authenticated user can influence the identifier passed to GridFS, potentially allowing unauthorized access to stored file content or removal of GridFS file chunks. Defenders should assess exposure, verify remediation, and monitor GridFS for unusual activity.

• Potential unauthorized access to stored file content
• Possible data loss or corruption due to GridFS file chunk removal
• Need for verification of MongoDB C# Driver version and GridFS usage
• Potential disruption to business operations due to data loss or corruption

Technical summary

The MongoDB C# Driver's GridFS component is vulnerable to improper neutralization of special elements in data query logic. An authenticated user can influence the identifier passed to the GridFS component, potentially allowing them to obtain stored file content beyond the intended target or remove GridFS file chunks, rendering stored file content unreadable. This vulnerability affects MongoDB C# Driver versions between 2.3.0 and 3.11.1. Defenders should assess exposure and verify remediation for these versions. The CVE record and NVD entry provide details on the improper neutralization of special elements in the GridFS component of the MongoDB C# Driver.

Defensive priority

Assess exposure and verify remediation for MongoDB C# Driver versions between 2.3.0 and 3.11.1.

Recommended defensive actions

• Review and update MongoDB C# Driver to version 3.11.1 or later
• Restrict access to GridFS for authenticated users
• Monitor GridFS for unusual file access or modification patterns
• 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 improper neutralization of special elements in the GridFS component of the MongoDB C# Driver. An authenticated user can influence the identifier passed by an affected application, potentially obtaining stored file content or removing GridFS file chunks.

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.