CVE-2026-114643

medium

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.

References

https://jira.mongodb.org/browse/CSHARP-6179

https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-mqvm-xxqr-vqw5

https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108303

Details

Source: Mitre, NVD

Published: 2026-10-22

Updated: 2026-10-22

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Severity: Medium

CVSS v4

Base Score: 5.3

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

Severity: Medium