CVE-2021-23434: Debian Linux

High severity, CVSS 8.6. EPSS: 1.9% chance of exploitation in the next 30 days.

This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.

Affected products

• Debian Debian Linux: version 10.0 only
• Object-Path Project Object-Path: before 0.11.6 (fixed in 0.11.6)

Published 2021-08-27. Last modified 2026-06-17.