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CVE-2026-42334

Severity CVSS v4.0:
Pending analysis
Type:
CWE-74 Injection
Publication date:
14/05/2026
Last modified:
15/05/2026

Description

Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.9, 7.8.9, 8.22.1, and 9.1.6, a vulnerability allows bypassing Mongoose’s sanitizeFilter query sanitization mechanism via the $nor operator. When sanitizeFilter is enabled, Mongoose wraps query operators in $eq to neutralize them. However, prior to the fix, $nor was not included in the set of logical operators that are recursively sanitized. Because $nor accepts an array (like $and and $or), and arrays do not trigger hasDollarKeys(), malicious operators such as $ne, $gt, or $regex could be injected inside a $nor clause without being sanitized. This vulnerability is fixed in 6.13.9, 7.8.9, 8.22.1, and 9.1.6.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:* 6.13.9 (excluding)
cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:* 7.0.0 (including) 7.8.9 (excluding)
cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:* 8.0.0 (including) 8.22.1 (excluding)
cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:* 9.0.0 (including) 9.1.6 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools