CVE-2026-92756: MongoDB Entity Framework Core Provider encryption settings bypass

CVE-2026-92756 · Severity: medium · CVSS 5.5 · Published 2026-09-17

Applications using MongoDB's Entity Framework Core Provider may inadvertently disable encryption protections when combining independent and provider-specific encryption settings, causing sensitive data fields to be stored unencrypted in the database. This silent failure of encryption could expose protected information without warning to application owners.

Technologies: MongoDB Entity Framework Core Provider. Vendors: MongoDB.

Quick answers

Is CVE-2026-92756 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-92756 being exploited in the wild.
How severe is CVE-2026-92756?
Medium severity, with a CVSS score of 5.5, published 17 September 2026.
Which products and versions are affected?
MongoDB Entity Framework Core Provider.
Is there a fix for CVE-2026-92756?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-92756 attacked?
It is attacked with local access.
Am I affected by CVE-2026-92756?
Check whether you run MongoDB Entity Framework Core Provider. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The MongoDB Entity Framework Core Provider contains a configuration flaw where conflicting encryption settings—when independent encryption settings are combined with the provider's own encryption settings—cause TLS and schema-map settings to be silently dropped. This results in encrypted fields being stored in plaintext in the database. The vulnerability is a logic error in the encryption configuration handling, requiring the specific combination of both types of encryption settings to trigger. No user interaction or authentication is required to be vulnerable; affected applications will automatically lose encryption protections during normal operation.

Affected products

  • MongoDB Entity Framework Core Provider

Timeline

  • 2026-09-17: disclosed

References

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