MongoDB C# Driver up to 3.12.x input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.9$0-$5k1.57-

Summaryinfo

A vulnerability was found in MongoDB C# Driver up to 3.12.x. It has been rated as problematic. This affects an unknown part. This manipulation causes input validation. This vulnerability appears as CVE-2026-114643. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MongoDB C# Driver up to 3.12.x. It has been declared as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity, and availability. The summary by CVE is:

The MongoDB C# Driver writes GeoJSON extra members without checking whether their names collide with reserved GeoJSON members such as type and coordinates. An application that places user-supplied field names into these extra members can store documents with duplicate geometry fields, so the server and the driver resolve different values for the same record. Affected records can also become unreadable through the driver, interrupting application code that reads them.

It is possible to read the advisory at jira.mongodb.org. This vulnerability is known as CVE-2026-114643 since 10/21/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.13.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-4126). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source MongoDB

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (mongodb): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: C# Driver 3.13.0

Timelineinfo

10/21/2026 CVE reserved
10/22/2026 +1 days Advisory disclosed
10/22/2026 +0 days VulDB entry created
10/23/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: jira.mongodb.org
Status: Confirmed

CVE: CVE-2026-114643 (🔒)
GCVE (CVE): GCVE-0-2026-114643
GCVE (VulDB): GCVE-100-425383
CERT Bund: WID-SEC-2026-4126 - MongoDB C# Treiber: Mehrere Schwachstellen

Entryinfo

Created: 10/22/2026 21:37
Updated: 10/23/2026 14:53
Changes: 10/22/2026 21:37 (75), 10/23/2026 14:53 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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