CVE-2026-46510: Prototype Pollution Via In Operatorcve-2026-46510-prototype-pollution-via-in-operator
Checking property existence with the `in` operator can lead to prototype pollution when dealing with user-controlled keys. The `in` operator traverses the prototype chain and evaluates to true for internal properties like `__proto__` and `constructor`. If the property is then extracted and modified, it can pollute the global object prototype. Replace `in` wi
