CVE-2021-3766

9.8 criticalEPSS 1.5%

Critical (9.8) in objection project objection. EPSS 1.5% chance of exploitation in the next 30 days. Fixed in objection 2.2.16.

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

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
CWE: CWE-1321
Published: 2021-09-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-r659-8xfp-j327	npm	objection	<2.2.16	2.2.16