Is there a public exploit for CVE-2026-114649?

No public exploit for CVE-2026-114649 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-114649?

CVE-2026-114649 scores CVSS 7.6 (v4.0), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.2%.

What does CVE-2026-114649 affect?

CVE-2026-114649 affects MONGODB C# Driver.

7.6 High

The MongoDB C# Driver compares TLS client certificates by issuer and serial number only when deciding whether two clients can share cached…

CVE-2026-114649

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.

Assessment

CVSS: 7.6 (v4.0)
Severity: High
EPSS: 0.2% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 22 October 2026
Last updated: 2 November 2026
Affected: MONGODB · C# Driver
Assigner: mongodb

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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