CVE-2019-20149: Kind-Of Project Kind-Of

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

ctorName in index.js in kind-of v6.0.2 allows external user input to overwrite certain internal attributes via a conflicting name, as demonstrated by 'constructor': {'name':'Symbol'}. Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.

Affected products

• Kind-Of Project Kind-Of: version 6.0.2 only

Published 2019-12-30. Last modified 2026-06-17.