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CVE-2026-88025— GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C# Driver

Quick assessment

Affected
MongoDB C# Driver
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MongoDB C驱动程序中 GridFS 组件在数据查询逻辑中对特殊元素的中和（转义/处理）不当，可能导致调用方提供的结构化文件标识符被解释为查询条件，而非作为字面量标识符处理。一个能够影响受受影响应用程序传入标识符的已认证用户，可能会获取超出预期目标范围的已存储文件内容，或者导致受影响桶中的所有 GridFS 文件分片被删除，从而使已存储的文件内容变得不可读。受影响的“重命名”操作还可能会重命名除预期目标之外的其他已存储文件。

CVSS 8.3 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
MongoDB C# Driver 2.3.0≤ 3.11.1 affected
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I. Basic Information for CVE-2026-88025

Vulnerability Information
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Vulnerability Title
GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C# Driver
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
数据查询逻辑中特殊元素的不当中和
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MongoDB C# Driver 2.3.0 ~ 3.11.1 -

II. Public POCs for CVE-2026-88025

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III. Intelligence Information for CVE-2026-88025

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Other References for CVE-2026-88025 (1)

Same Patch Batch · MongoDB · 2026-09-10 · 15 CVEs total

CVE-2026-88024 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88023 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88030 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88029 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88034 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88033 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88036 8.3 HIGH GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoD
CVE-2026-88031 8.1 HIGH GridFS data deletion via query-operator injection in file IDs in the MongoDB Go Driver
CVE-2026-88022 7.7 HIGH Unauthorized document disclosure and deletion via query-operator injection in explicit equ
CVE-2026-88027 7.1 HIGH Mass deletion and overwrite of embedded documents via query-operator injection in embedded
CVE-2026-88026 6.5 MEDIUM Regular expression injection via unescaped characters in LINQ query translation in MongoDB
CVE-2026-88028 6.5 MEDIUM Unauthorized document disclosure via query-operator injection in polymorphic relation iden
CVE-2026-88032 5.9 MEDIUM Application denial of service via cancellation race in reactive client-side encryption in
CVE-2026-88035 4.7 MEDIUM Heap buffer overflow via wrapped size check during SASL username canonicalization in Mongo

IV. Related Vulnerabilities

Same product: C# Driver
Same vendor: MongoDB
Same weakness: CWE-943

V. Comments for CVE-2026-88025

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