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CVE-2026-92757

Malformed connection string may disable field level encryption

MEDIUM
5.5
CVSS Score
Published: September 17, 2026 at 07:20 PM UTC
Updated: September 24, 2026 at 03:47 PM UTC
1 product affected across 1 vendorEntity Framework Core Provider

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Entity Framework Core Provider· MongoDBnuget
95%
10.0.0 ≤ v < 10.0.48.0.0 ≤ v < 8.4.48.3.1 ≤ v < 8.4.49.0.0 ≤ v < 9.1.49.0.1 ≤ v < 9.1.410.0.08.3.19.0.1
Affected range stops below 10.0.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.4.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.1.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPermissions Required
Source: cverecord
https://jira.mongodb.org/browse/EF-389

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMmongodb
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-311

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