Is there a public exploit for CVE-2026-114647?

No public exploit for CVE-2026-114647 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-2026-114647?

CVE-2026-114647 scores CVSS 5.3 (v4.0), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.26%.

What does CVE-2026-114647 affect?

CVE-2026-114647 affects MONGODB C# Driver.

5.3 Medium

The MongoDB C# Driver does not reject replacement documents whose top-level field names begin with a dollar sign in FindOneAndReplace,…

CVE-2026-114647

The MongoDB C# Driver does not reject replacement documents whose top-level field names begin with a dollar sign in FindOneAndReplace, unlike other replace operations. An application that builds such a document from user-supplied field names can have the server apply update operators instead of a full replacement. The effect is limited to the document matched by the application's own filter, whose contents can be modified in ways the application did not intend.

Assessment

CVSS: 5.3 (v4.0)
Severity: Medium
EPSS: 0.26% 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:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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