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.

• CWE-770

• 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

Published

Oct 22, 2026

Last Modified

Oct 22, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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