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mariocasciaro/object-path · Security

Prototype Pollution in object-path

GHSA ID
GHSA-v39p-96qg-c8rf
CVE ID
CVE-2021-23434
Severity
medium
Published
Updated
CVSS
5.6 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v3
5.6 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Description

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.

CWEs

  • CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
  • CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

References