Vulnerability · Published Sep 17, 2026 · Assigned by mongodb
CVE-2026-92757Malformed connection string may disable field level encryption
Medium 5.5
In plain English
A medium-severity security flaw in MongoDB Entity Framework Core Provider from MongoDB Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)<0.1%top 100.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Applications built on MongoDB Entity Framework Core Provider which place a database name in the connection string may inadvertently disable field level encryption.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MongoDB Inc. | MongoDB Entity Framework Core Provider | 8.3.1 – before 8.4.49.0.1 – before 9.1.410.0.0 – before 10.0.4 |
Weakness: CWE-311 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N