CVE-2026-88025
Received Received - Intake

Improper Input Handling in MongoDB C# Driver GridFS

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: MongoDB, Inc.

Description
Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C# Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable. The affected rename operation may also rename a stored file other than the intended target.

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Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-10
AI Q&A
2026-09-10
EPSS Evaluated
N/A
NVD
CVE-2026-88025
EUVD
EUVD-2026-75639

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mongodb mongodb_csharp_driver *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-943 The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.

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Executive Summary

This vulnerability involves improper handling of special elements in data queries within MongoDB's GridFS component for the C# Driver. An authenticated user can manipulate a file identifier to be treated as a query condition instead of a literal value. This may allow access to unintended file content or deletion of all file chunks in a bucket, making stored files unreadable.

Impact Analysis

An attacker with access could read unauthorized files or delete critical data stored in GridFS buckets. This could lead to data breaches, loss of sensitive information, or disruption of services relying on stored files.

Compliance Impact

This vulnerability could lead to unauthorized data access or deletion, violating confidentiality and integrity requirements in GDPR and HIPAA. Non-compliance may result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update the MongoDB C# Driver to the latest version that patches this vulnerability. Review applications using GridFS to ensure file identifiers are properly validated and not treated as query conditions. Restrict database user permissions to limit access to GridFS operations.

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