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CVE-2026-92756— Combining encryption settings may disable encryption

Quick assessment

Affected

MongoDB Inc. MongoDB Entity Framework Core Provider

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

基于 MongoDB Entity Framework Core 提供者构建的应用程序，如果同时使用了独立的加密设置和该提供者自身的加密设置，可能会无声地丢失 TLS 和模式映射（schema-map）配置，从而导致受保护的字段以未加密的形式存储在数据库中。

CVSS 5.5 · Medium EPSS 0.07% · P0 Updated Sep 18, 2026

Possible ATT&CK Techniques 1 AI

T1538 · Cloud Service Dashboard

Affected Version Matrix 3

Vendor	Product	Version Range	Status
MongoDB Inc.	MongoDB Entity Framework Core Provider	`8.0.0< 8.4.3`	affected
		`9.0.0< 9.1.3`	affected
		`10.0.0< 10.0.3`	affected

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Vulnerability Information

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Vulnerability Title

Combining encryption settings may disable encryption

Source: CVE Program / CVE List V5

Vulnerability Description

Applications built on MongoDB Entity Framework Core Provider which combine independent encryption settings and this provider's encryption settings may silently lose TLS and schema-map settings leading to protected fields being stored unencrypted in the database.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

敏感数据加密缺失

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
MongoDB Inc.	MongoDB Entity Framework Core Provider	8.0.0 ~ 8.4.3	-

II. Public POCs for CVE-2026-92756

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-92756

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Vendor Pages for CVE-2026-92756 (1)

🔗 SAML Login - MongoDB Jira - MongoDB Jira

https://www.cve.org/CVERecord?id=CVE-2026-92756

Same Patch Batch · MongoDB Inc. · 2026-09-17 · 6 CVEs total

CVE-2026-93393	8.1 HIGH	Heap overflow via oversized decrypted TLS record sequence in Windows Secure Channel stream
CVE-2026-92757	5.5 MEDIUM	Malformed connection string may disable field level encryption
CVE-2026-92758	5.5 MEDIUM	Logs may collect sensitive information
CVE-2026-93395	5.3 MEDIUM	Integer Underflow → Heap Out-of-Bounds Read in `bson_new_from_buffer()
CVE-2026-93394	3.7 LOW	libmongoc SCRAM client nonce-validation bypass

IV. Related Vulnerabilities

Same product: MongoDB Entity Framework Core Provider

Same vendor: MongoDB Inc.

Same weakness: CWE-311