# CVE-2026-9746: Server crashes in case of the use of exchange

> CVE-2026-9746: Server crashes in case of the use of exchange. CVSS 6.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-9746
Last updated: 2026-07-23T09:10:00Z

- Published: 2026-06-09 22:02 UTC · Updated: 2026-07-23 09:10 UTC · Assigner: mongodb
- CVSS: 6.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.27%, 19th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-617

## Description

When using $changestreams and $\_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.

## 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-2026-9746)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-9746)
- [https://jira.mongodb.org/browse/SERVER-124190](https://jira.mongodb.org/browse/SERVER-124190)

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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-2026-9746 · Markdown: https://rewindex.com/cve/CVE-2026-9746.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-9746 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:01.564Z