CVE-2026-114651: CWE-908: Use of Uninitialized Resource in MongoDB C# Driver
Description
A memory-handling weakness in the BSON deserialization component of the MongoDB C# Driver may cause data left over from previously processed content to be returned when specially crafted serialized input is parsed. An unauthenticated party able to supply serialized data to an application that maps certain primitive collection types can cause residual bytes from unrelated data processed earlier on the same execution thread to be surfaced as legitimate values. This can result in disclosure of a limited amount of information belonging to other requests or principals of the consuming application. No authentication or special privileges within the application are required.
CVSS v4.0
Score 6.3medium
Affected software
MongoDB
C# Driver
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-10-21T21:57:51.270Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ada649f4d27ba8daa755e46
Added to database: 10/22/2026, 19:31:43 UTC
Last updated: 10/22/2026, 19:31:43 UTC
Views: 3
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