CVE-2021-3815: Utils.js Project Utils.js

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

utils.js is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Affected products

• Utils.js Project Utils.js: before 0.17.2 (fixed in 0.17.2)

Published 2021-12-08. Last modified 2026-06-17.