CVE-2026-114649
mediumpriority · track · 0EPSS 0.002 · 10 %ileFREPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.6
weaknesses
The CWE weakness classes this flaw belongs to.
affected products
Products and version ranges known to be affected.
No affected products recorded.
advisories (1)
Vendor and ecosystem advisories describing this.
- CERTFR-2026-AVI-1386Multiples vulnérabilités dans les produits MongoDBFrançais2026-10-26vendor · certfrFR
sources
Which sources assert this record, and when.
references (3) nvd
External citations — patches, advisories, analysis.
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