# CVE-2026-114643: Duplicate geometry fields via unvalidated GeoJSON extra members

> CVE-2026-114643: Duplicate geometry fields via unvalidated GeoJSON extra members. CVSS 5.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-114643
Last updated: 2026-10-23T19:45:03Z

- Published: 2026-10-22 19:13 UTC · Updated: 2026-10-23 19:45 UTC · Assigner: mongodb
- CVSS: 5.4 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- EPSS: 0.37%, 31th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-694

## 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.

## Affected vendors and products

- MongoDB: C\# Driver

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-114643)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-114643)
- [https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0](https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0)
- [https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-mqvm-xxqr-vqw5](https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-mqvm-xxqr-vqw5)
- [https://jira.mongodb.org/browse/CSHARP-6179](https://jira.mongodb.org/browse/CSHARP-6179)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-114643 · Markdown: https://rewindex.com/cve/CVE-2026-114643.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-114643 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:55.484Z