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.
Published: 2026-11-03
Score: 5.2 Medium
EPSS: n/a
KEV: No
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Remediation

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History

Tue, 03 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 03 Nov 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb database Tools
Vendors & Products Mongodb
Mongodb database Tools

Tue, 03 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title mongorestore may bypass collection guards through a system.buckets prefix
Weaknesses CWE-706
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 5.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}


Subscriptions

Mongodb Database Tools
cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-11-03T17:45:37.053Z

Reserved: 2026-10-30T14:08:04.263Z

Link: CVE-2026-119675

cve-icon Vulnrichment

Updated: 2026-11-03T17:45:32.379Z

cve-icon NVD

Status : Received

Published: 2026-11-03T17:18:07.123

Modified: 2026-11-03T18:17:56.380

Link: CVE-2026-119675

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T18:00:19Z

Weaknesses