CVE-2026-114643

Duplicate geometry fields via unvalidated GeoJSON extra members

State
Published
Severity
5.3 Medium
Published
Oct 22, 2026
Updated
Oct 22, 2026
Reserved
Oct 21, 2026

Read the record on cve.org

Description

The MongoDB C# Driver writes GeoJSON extra members without checking whether their names collide with reserved GeoJSON members such as type and coordinates. An application that places user-supplied field names into these extra members can store documents with duplicate geometry fields, so the server and the driver resolve different values for the same record. Affected records can also become unreadable through the driver, interrupting application code that reads them.

Scores

CVSSScoreVectorSource
4.05.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:Nmongodb
3.15.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Lmongodb

Weaknesses

  • CWE-694 Use of Multiple Resources with Duplicate Identifier

Affected Products

ProductVersions
C# DriverMongoDB
  • 1.8.0 to before 3.13.0Affected

References

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