CVE-2026-9100— Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1210 · Exploitation of Remote ServicesAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MongoDB, Inc. | C Driver | 1.0< 1.30.8 | affected |
2.0< 2.2.4 | affected |
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I. Basic Information for CVE-2026-9100
Vulnerability Information
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Vulnerability Title
Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
Source: NVD (National Vulnerability Database)
Vulnerability Description
The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1285
Source: NVD (National Vulnerability Database)
Vulnerability Title
MongoDB C Driver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB C Driver是MongoDB开源的一个用于在C语言程序中连接和操作MongoDB数据库的客户端驱动库。 MongoDB C Driver存在安全漏洞，该漏洞源于传统GridFS API未充分验证文件元数据，可能导致读取特制文档时崩溃或内存内容泄露。以下版本受到影响：MongoDB C Driver 4.4.0.3.0版本、4.5.0.0.0版本、4.5.0.1.1版本、4.5.0.1.3版本、4.5.0.2.0版本、25.4版本和25.10版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB, Inc. | C Driver | 1.0 ~ 1.30.8 | - |
II. Public POCs for CVE-2026-9100
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patch · 1
IV. Related Vulnerabilities
Same vendor: MongoDB, Inc.
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Post-authentication use-after-free error in $_internalJsEmit - CVE-2026-8201
Use-After-Free in MongoDB FLE Query Analysis When Processing
Same weakness: CWE-1285
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V. Comments for CVE-2026-9100
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