CVE-2026-114648 MongoDB C# Driver - NoSQL Injection

MongoDB C# Driver contains a NoSQL injection caused by improper neutralization of dot and dollar characters in dictionary keys and field names in LINQ queries, letting attackers redirect queries or updates to unintended fields, exploit requires attacker-controlled input reaching query fields.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
NoSQL Injection
Impact
Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Published
22 October 2026
Updated
23 October 2026
Weakness
CWE-943

Vendor fix

Update to the latest MongoDB C# Driver version that neutralizes dot and dollar characters in keys and field names.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs