CVE-2021-40663

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

deep.assign npm package 0.0.0-alpha.0 is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-1321

Affected software

No affected versions have been published.

Timeline

Published
Jun 30, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-40663: Critical severity, CVSS 9.8 | Vulnix