Incorrect Conversion between Numeric Types Affecting mongo-c-driver package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-CONAN-MONGOCDRIVER-20074894
  • published24 Sept 2026
  • disclosed3 Sept 2026
  • creditUnknown

Introduced: 3 Sep 2026

NewCVE-2026-84970  (opens in a new tab)
CWE-681  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Incorrect Conversion between Numeric Types in the JSON parsing process. An attacker can cause the library to read memory beyond the supplied buffer, return unintended data to the caller, or terminate the process by supplying a very large JSON input to the public parsing interface.

References

CVSS Base Scores

version 4.0
version 3.1