CVE-2026-93759

Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist

Published: Sep 18, 2026Updated: Sep 21, 2026 Sources: CVE List NVDCWE-94

8.6HIGH

Description

Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript expression. An unauthenticated party able to influence the value an application supplies as a query argument may cause code of their choosing to be evaluated by the database engine. This may result in unintended disclosure of stored field values, unintended selection of documents for application-initiated writes, and reduced database performance.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-94

Affected Products

MongoDB Inc.

commercial·USaka mongodb, mongodb server, mongodb ops manager

MongoidMixed

Databases / nosql

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

View detailed technique mapping

References

https://jira.mongodb.org/browse/MONGOID-5993

jira.mongodb.org

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