# CVE-2026-119675: mongorestore may bypass collection guards through a system.buckets prefix

> CVE-2026-119675: mongorestore may bypass collection guards through a system.buckets prefix. CVSS 8.6 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-119675
Last updated: 2026-11-03T20:00:56Z

- Published: 2026-11-03 16:06 UTC · Updated: 2026-11-03 20:00 UTC · Assigner: mongodb
- CVSS: 8.6 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS: 0.17%, 7th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-706

## Description

MongoDB Database Tools mongorestore inconsistently handles the system.buckets. prefix when validating collection names in an untrusted dump. A specially crafted collection name can bypass special-collection guards and operator namespace filters, causing a restore to create an unauthorized user-chosen database account, including an account with the root role. Exploitation requires an operator to restore unauthorized user-controlled data using credentials with sufficient user-management privileges on the destination deployment. Excluding the admin namespace alone does not prevent this behavior. This issue affects MongoDB Database Tools versions 100.4.0 through versions before 100.20.1.

## Affected vendors and products

- MongoDB: Database Tools

## Tracked companies

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-119675)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-119675)
- [https://github.com/mongodb/mongo-tools/blob/master/CHANGELOG.md](https://github.com/mongodb/mongo-tools/blob/master/CHANGELOG.md)

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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-2026-119675 · Markdown: https://rewindex.com/cve/CVE-2026-119675.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-119675 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T15:28:16.789Z