CVE-2020-7713: Arr-Flatten-Unflatten Project Arr-Flatten-Unflatten

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

All versions of package arr-flatten-unflatten are vulnerable to Prototype Pollution via the constructor.

Affected products

• Arr-Flatten-Unflatten Project Arr-Flatten-Unflatten: any version

Published 2020-09-01. Last modified 2026-06-17.