CVE-2026-33228: Array Index Via String Wrapper Prototype Pollution
A String wrapper instance is used directly as an Array index without numeric coercion. Array property access for non-numeric string keys traverses the prototype chain, so an attacker-controlled value such as "__proto__" resolves to Array.prototype, leaking a live reference that enables prototype pollution (CWE-1321). Coerce the value with `+value` or validat
JSgreprules fetch cve-2026-33228-array-index-via-string-wrapper-prototype-pollution --engine opengrepDescription
A String wrapper instance is used directly as an Array index without numeric coercion. Array property access for non-numeric string keys traverses the prototype chain, so an attacker-controlled value such as "__proto__" resolves to Array.prototype, leaking a live reference that enables prototype pollution (CWE-1321). Coerce the value with `+value` or validat
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