CVE-2026-114649: CWE-1025: Comparison Using Wrong Factors in MongoDB C# Driver
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.
CVSS v4.0
Score 7.6high
Affected software
MongoDB
C# Driver
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-10-21T21:57:47.845Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ada649f4d27ba8daa755e44
Added to database: 10/22/2026, 19:31:43 UTC
Last updated: 10/22/2026, 19:31:43 UTC
Views: 3
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