# CVE-2026-106430: Query and rename target confusion via embedded NUL truncation in MongoDB C++ Driver

> CVE-2026-106430: Query and rename target confusion via embedded NUL truncation in MongoDB C++ Driver. CVSS 5.9 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-106430
Last updated: 2026-10-08T20:49:23Z

- Published: 2026-10-08 18:45 UTC · Updated: 2026-10-08 20:49 UTC · Assigner: mongodb
- CVSS: 5.9 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
- EPSS: 0.18%, 7th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-436

## Description

The MongoDB C++ Driver discards content after an embedded NUL byte in certain field and collection names accepted by the collection API. This can cause the driver and the calling application to interpret the same name differently. An authenticated actor who can influence a name passed by an affected application can cause the application to read distinct values from an unintended field or rename an unintended collection. These operations use the application's existing database credentials.

## 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-2026-106430)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-106430)
- [https://jira.mongodb.org/browse/CXX-3551](https://jira.mongodb.org/browse/CXX-3551)
- [https://jira.mongodb.org/browse/CXX-3552](https://jira.mongodb.org/browse/CXX-3552)

---

_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/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-106430 · Markdown: https://rewindex.com/cve/CVE-2026-106430.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-106430 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:17.470Z