CVE-2026-88023
Received Received - Intake

Improper Data Query Handling in MongoDB PHP Library 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 PHP Library 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-2026-88023
EUVD
EUVD-2026-75637

Affected Vendors & Products

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

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 PHP Library GridFS component. An attacker with authenticated access can manipulate a file identifier to either access unintended file content or delete all file chunks in a bucket, making stored files unreadable. The issue also affects file renaming operations, potentially renaming the wrong file.

Detection Guidance

This vulnerability involves improper handling of file identifiers in MongoDB's GridFS component. Detection requires checking for unusual file access patterns or unauthorized file operations in GridFS buckets. Review application logs for GridFS operations with unexpected parameters or results. Inspect MongoDB logs for queries that may have been manipulated via special elements in identifiers.

Impact Analysis

If exploited, this vulnerability could allow unauthorized access to sensitive files stored in GridFS, leading to data breaches. It could also result in permanent data loss by deleting file chunks. Organizations using the affected MongoDB PHP Library may face operational disruptions and compromised data integrity.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations by enabling unauthorized data access or loss of protected health or personal information. Organizations may face legal penalties, reputational damage, and loss of customer trust due to compromised data handling.

Mitigation Strategies

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

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