# CVE-2025-6706: Running certain aggregation operations with the SBE engine may lead to unexpected behavior on MongoDB Server

> CVE-2025-6706: Running certain aggregation operations with the SBE engine may lead to unexpected behavior on MongoDB Server. CVSS 5.0 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-6706
Last updated: 2026-06-17T10:02:25Z

- Published: 2025-06-26 14:00 UTC · Updated: 2026-06-17 10:02 UTC · Assigner: mongodb
- CVSS: 5.0 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
- EPSS: 0.26%, 18th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-416

## Description

An authenticated user may trigger a use after free that may result in MongoDB Server crash and other unexpected behavior, even if the user does not have authorization to shut down a server. The crash is triggered on affected versions by issuing an aggregation framework operation using a specific combination of rarely-used aggregation pipeline expressions. This issue affects MongoDB Server v6.0 version prior to 6.0.21, MongoDB Server v7.0 version prior to 7.0.17 and MongoDB Server v8.0 version prior to 8.0.4 when the SBE engine is enabled.

## Affected vendors and products

- MongoDB Inc: 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-2025-6706)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-6706)
- [https://jira.mongodb.org/browse/SERVER-106746](https://jira.mongodb.org/browse/SERVER-106746)

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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-2025-6706 · Markdown: https://rewindex.com/cve/CVE-2025-6706.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-6706 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:22.838Z