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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2021-09-01T17:30:09.902397Z

Updated: 2024-09-16T16:28:32.515Z

Reserved: 2021-01-08T00:00:00

Link: CVE-2021-23436

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-09-01T18:15:08.477

Modified: 2021-09-10T13:33:17.097

Link: CVE-2021-23436

cve-icon Redhat

Severity : Important

Publid Date: 2021-09-01T00:00:00Z

Links: CVE-2021-23436 - Bugzilla