CyberRota Analysis
AI-GeneratedThe vulnerability affects the joi and @hapi/joi packages in JavaScript, specifically versions 16.0.0 to 17.13.6 and 18.2.5, allowing prototype pollution through untrusted input in schema-construction configurations. This can lead to unintended modifications of Object.prototype properties, potentially causing applications to behave incorrectly when relying on inherited properties. Developers using these versions should prioritize upgrading to the patched versions to mitigate the risk of exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
joi is a schema description language and data validator for JavaScript. From 16.0.0 until 17.13.6 and 18.2.5, the @hapi/joi package through 17.1.1 and the successor joi package contain prototype pollution in lib/messages.js, where exports.compile() and exports.merge() reuse inherited objects for attacker-controlled language keys supplied through messages(), message(), prefs({ messages }), Joi.extend({ messages }), or rule({ message }). A language key named __proto__ writes properties onto Object.prototype, and constructor writes to the Object function's static properties. A consuming application that gates on the presence of an inherited property can take the wrong branch for every inspected object. The flaw is not reachable from data that joi validates and requires an application to feed untrusted input directly into schema-construction configuration. This issue is fixed in joi versions 17.13.6 and 18.2.5; no fixed @hapi/joi version is available.