---
title: "CVE-2026-114648: MongoDB C# Driver - NoSQL Injection"
description: "MongoDB C# Driver contains a NoSQL injection caused by improper neutralization of dot and dollar characters in dictionary keys and field names in LINQ queries, letting attackers redirect queries or updates to unintended fields, exploit requires attacker-controlled input reaching query fields."
url: https://panop.io/threat-heartbeat/CVE-2026-114648/
---

# CVE-2026-114648 MongoDB C# Driver - NoSQL Injection

MongoDB C# Driver contains a NoSQL injection caused by improper neutralization of dot and dollar characters in dictionary keys and field names in LINQ queries, letting attackers redirect queries or updates to unintended fields, exploit requires attacker-controlled input reaching query fields.

CVSS base score 7.6 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-114648)

## Details

Type

NoSQL Injection

Impact

Information Disclosure, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Published

22 October 2026

Updated

23 October 2026

Weakness

[CWE-943](https://cwe.mitre.org/data/definitions/943.html)

## Vendor fix

Update to the latest MongoDB C# Driver version that neutralizes dot and dollar characters in keys and field names.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-114648](https://nvd.nist.gov/vuln/detail/CVE-2026-114648)
- [https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0](https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0)
- [https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-2xqr-fxmx-2cmf](https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-2xqr-fxmx-2cmf)
- [https://jira.mongodb.org/browse/CSHARP-6181](https://jira.mongodb.org/browse/CSHARP-6181)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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