CVE-2026-18708
Improper Neutralization of Input in MongoDB Server's JavaScript Scripting Engine Leads to Unauthorized Code Execution Within Query Scopes
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | mongodb |
| Product | mongodb server |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
MongoDB / MongoDB Server
8.3.0 < 8.3.8 8.0 < 8.0.29 7.0 < 7.0.40