node-csv: Prototype replacement still reachable via columns path

NVD Description

### Impact With columns: true and group_columns_by_name: true, a duplicated __proto__ header causes the duplicate-column branch to assign an array to obj['__proto__'], invoking the __proto__ setter and replacing the parsed record object's prototype with attacker-controlled data. Fixed in 7.0.2 (Object.hasOwn duplicate check + Object.defineProperty assignment). ### Patches The problem been patched. ### Workarounds Disable usage of both the columns and group_columns_by_name options. ### References issue #496, PR #497

Affected Packages (1)