CVE-2026-114644

The MongoDB C# Driver's BSON library contains an uncontrolled resource consumption weakness in its deserialization handling of one BSON value type. An application that deserializes untrusted content with the library retains data derived from that content for the lifetime of the process, with no limit on how much accumulates. An unauthenticated remote party who can cause such content to be deserialized can drive unbounded memory growth, exhausting the host application's available memory and denying service. There is no impact to confidentiality or integrity, and no MongoDB server component is affected.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0
https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-x24v-h3xm-qf9x
https://jira.mongodb.org/browse/CSHARP-6162

Configurations

No configuration.

History

22 Oct 2026, 22:18

Type	Values Removed	Values Added
References		() https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-x24v-h3xm-qf9x -

22 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 19:17

Updated : 2026-10-23 19:45

NVD link : CVE-2026-114644

Mitre link : CVE-2026-114644

CVE.ORG link : CVE-2026-114644

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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