CVE-2026-92757 PUBLISHED

Malformed connection string may disable field level encryption

Assigner: mongodb
Reserved: 16.09.2026 Published: 17.09.2026 Updated: 17.09.2026

Applications built on MongoDB Entity Framework Core Provider which place a database name in the connection string may inadvertently disable field level encryption.

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CVSS Score: 6.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS Score: 5.5

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	MongoDB Inc.
Product	MongoDB Entity Framework Core Provider
Versions	Default: unaffected affected from 8.3.1 to 8.4.4 (excl.) affected from 9.0.1 to 9.1.4 (excl.) affected from 10.0.0 to 10.0.4 (excl.)

References

https://jira.mongodb.org/browse/EF-389

Problem Types

CWE-311: Missing Encryption of Sensitive Data CWE