CVE-2021-3766: Objection Project Objection

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

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

Affected products

• Objection Project Objection: before 2.2.16 (fixed in 2.2.16)

Published 2021-09-06. Last modified 2026-06-17.