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5.6 Medium

CVE-2021-23436 This affects the package immer before 9.0.6

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.

Affected products and versions

Product Affected versions Fixed in
immer 9.0 earliest → < 9.0.6 9.0.6
The 2 CVEs of immer →
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