CVE-2026-114648
NoSQL injection via dot and dollar characters in LINQ filter field names and dictionary keys
CVSS Score
7.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-943 |
| Vendor | mongodb |
| Product | c# driver |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
Affected Versions
MongoDB / C# Driver
2.14.0 < 3.13.0