An issue in MongoDB Server's JavaScript scripting engine could allow an authenticated user with write privileges to cause code they control to be executed within the query scope of other users, through a specially crafted stored value processed during an internal maintenance cycle. This could result in corruption of query results affecting other users and denial of service targeted at their operations on the same database. Impact is limited to the scripting engine's execution sandbox, which does not provide access to database, filesystem, or network resources.

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History

Tue, 11 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Description An issue in MongoDB Server's JavaScript scripting engine could allow an authenticated user with write privileges to cause code they control to be executed within the query scope of other users, through a specially crafted stored value processed during an internal maintenance cycle. This could result in corruption of query results affecting other users and denial of service targeted at their operations on the same database. Impact is limited to the scripting engine's execution sandbox, which does not provide access to database, filesystem, or network resources.
Title Improper Neutralization of Input in MongoDB Server's JavaScript Scripting Engine Leads to Unauthorized Code Execution Within Query Scopes
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-08-11T20:23:13.258Z

Reserved: 2026-08-03T15:55:08.340Z

Link: CVE-2026-18708

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-08-11T19:17:25.670

Modified: 2026-08-11T19:17:25.670

Link: CVE-2026-18708

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses