Prevent object prototype pollution#799
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In line with best practices described here: https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution the following changes have been made across the codebase to prevent potential object prototype pollution: - All objects created using `… = {}` have been changed to `... = Object.create(null)` (i.e.) null prototype objects. - All occurrencies of `obj.hasOwnProperty(‘prop’)` have been changed to `Object.prototype.hasOwnProperty.call(obj, ‘prop’)` - All occurrencies of `for(const prop in obj)` have been changed to `for(const prop of Object.keys(obj))` - Changed arr.forEach(…) to Array.prototype.forEach.call(arr, …) when iterating over input sequences. Signed-off-by: Andrew Coleman <andrew_coleman@uk.ibm.com>
mattbaileyuk
approved these changes
May 19, 2026
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In line with best practices described here:
https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution the following changes have been made across the codebase to prevent potential object prototype pollution:
… = {}have been changed to... = Object.create(null)(i.e.) null prototype objects.obj.hasOwnProperty(‘prop’)have been changed toObject.prototype.hasOwnProperty.call(obj, ‘prop’)for(const prop in obj)have been changed tofor(const prop of Object.keys(obj))