CVE-2026-114648: CWE-943: Improper Neutralization of Special Elements in Data Query Logic in MongoDB C# Driver
Description
The MongoDB C# Driver does not neutralize dot and dollar characters in dictionary keys, field names and array-filter identifiers used in LINQ queries before placing them into the field paths it sends to the server. An application user whose input reaches these positions can redirect a query or update to fields the application did not name, which can expose other users' documents and widen updates beyond the intended data. Certain values can also write malformed fields that leave stored documents unreadable by the application until they are repaired.
CVSS v4.0
Score 7.2high
Affected software
MongoDB
C# Driver
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-10-21T21:57:46.197Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ada649f4d27ba8daa755e43
Added to database: 10/22/2026, 19:31:43 UTC
Last updated: 10/22/2026, 19:31:43 UTC
Views: 2
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