CVE-2026-16266

4.0 MEDIUM
Published: July 21, 2026 Modified: July 21, 2026
View on NVD

Description

Versions of the package mongo-object before 3.0.3 are vulnerable to Prototype Pollution via the expandKey() function in util.js. An attacker can modify the JavaScript prototype chain by supplying a crafted property path containing special keys such as __proto__.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Quick Stats

CVSS v3 Score
4.0 / 10.0
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)