# CVE-2026-82071: Insufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to Out-of-Bounds Write

> CVE-2026-82071: Insufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to Out-of-Bounds Write. CVSS 8.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-82071
Last updated: 2026-09-16T20:39:21Z

- Published: 2026-09-08 16:12 UTC · Updated: 2026-09-16 20:39 UTC · Assigner: mongodb
- CVSS: 8.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- EPSS: 0.54%, 45th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-787

## Description

Insufficient validation of storage engine configuration options in MongoDB Server allows an authenticated user with write privileges to supply crafted parameters during collection creation that override internal storage metadata. This results in an out-of-bounds memory write in the server process, causing a denial of service via server crash, with potential for further impact including arbitrary code execution.

## Affected vendors and products

- MongoDB: MongoDB Server

## Tracked companies

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-82071)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-82071)
- [https://jira.mongodb.org/browse/SERVER-131860](https://jira.mongodb.org/browse/SERVER-131860)

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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-2026-82071 · Markdown: https://rewindex.com/cve/CVE-2026-82071.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-82071 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:20.000Z