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CVE-2026-114649 Details

Description

The MongoDB C# Driver compares TLS client certificates by issuer and serial number only when deciding whether two clients can share cached connections. In an application that creates clients from certificates supplied by different users, a user who provides a certificate copying another user's issuer and serial number, without that user's private key, can be given connections authenticated with the other user's certificate. Database operations can then run under the other user's identity, affecting the confidentiality and integrity of data that identity can access.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-6gjm-424r-3jh2	CISA-ADP
https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0	[email protected]
https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-6gjm-424r-3jh2	[email protected]
https://jira.mongodb.org/browse/CSHARP-6184	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1025	Comparison Using Wrong Factors	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Nov 2, 2026	CVE Modified	CISA-ADP
Oct 22, 2026	CVE Modified	[email protected]
Oct 22, 2026	New CVE Received	[email protected]