CVE-2021-23436

Publication date

2021-09-01 17:30:09

Family

snyk

State

PUBLISHED

Description

This affects the package immer before 9.0.6. A type confusion vulnerability can lead to a bypass of CVE-2020-28477 when the user-provided keys used in the path parameter are arrays. In particular, this bypass is possible because the condition (p === "__proto__" || p === "constructor") in applyPatches_ returns false if p is [__proto__] (or [constructor]). The === operator (strict equality operator) returns false if the operands have different type.