CVE-2018-3720: Assign-Deep Project Assign-Deep

High severity, CVSS 8.8. EPSS: 2% chance of exploitation in the next 30 days.

assign-deep node module before 0.4.7 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.

Affected products

• Assign-Deep Project Assign-Deep: before 0.4.7 (fixed in 0.4.7)

Published 2018-06-07. Last modified 2026-06-17.