CVE-2026-93759
Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist
CVSS Score
8.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | mongodb inc. |
| Product | mongoid |
| Published | Sep 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low
Affected Versions
MongoDB Inc. / Mongoid
9.1.0 9.0.0 ≤ 9.0.11 8.1.0 ≤ 8.1.12 8.0.0 ≤ 8.0.12