---
id: CVE-2026-88025
title: >-
  GridFS data disclosure and deletion via query-operator injection in file IDs
  in the MongoDB C# Driver
summary: >-
  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
  ident…
severity: high
cvss: 8.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-943
vendor: MongoDB
product: C# Driver
affected:
  - c_driver >= 2.3.0 <= 3.11.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T18:22:55.479869Z'
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T18:23:05.533Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-88025'
references:
  - url: 'https://jira.mongodb.org/browse/CSHARP-6190'
tags:
  - cve.org
epss: 0.00465
epssPercentile: 0.37637
ingestedAt: '2026-09-11T16:45:48.027Z'
---

## Overview

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.

## Affected

- `c_driver >= 2.3.0 <= 3.11.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.