Severity: high

Prototype Pollution



All versions of subtext are vulnerable to Prototype Pollution. A multipart payload can be constructed in a way that one of the parts’ content can be set as the entire payload object’s prototype. If this prototype contains data, it may bypass other validation rules which enforce access and privacy. If this prototype evaluates to null, it can cause unhandled exceptions when the request payload is accessed.


This package is deprecated and is now maintained as @hapi/subtext. Please update your dependencies to use @hapi/subtext.

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Advisory timeline

  1. published

    Advisory Published
    Feb 17th, 2020
  2. reported

    Reported by Eran Hammer
    Feb 17th, 2020