CVE-2026-114650 Plaintext exposure of encrypted fields via ANSI code-page corruption of database name
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-114650?
CVE-2026-114650 is a medium-severity vulnerability in MongoDB C# Driver, published on 22 Oct 2026.
Official description
A flaw in the client-side encryption support of the MongoDB .NET/C# driver can cause data designated for client-side field-level encryption to be written without encryption. Under certain platform text-encoding configurations, an internal name conversion loses information, so the encryption layer fails to associate the operation with its configured encryption rules and the operation proceeds without an error being raised. An application user with the ability to write data through an affected application can therefore have sensitive fields persisted in plaintext, defeating the confidentiality guarantee that client-side encryption is intended to provide. No integrity or availability impact was observed.
Weakness: CWE-838
Which versions are affected by CVE-2026-114650?
How do I fix CVE-2026-114650?
No fix has been published for CVE-2026-114650 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-114650 being exploited?
There is no known exploitation of CVE-2026-114650 in the wild and no public exploit code.
Sources
Also known as GHSA-jvpx-6w8x-h6rg.