CVE Intelligence

Kaspernj Form-data-objectizer vulnerabilities

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Published CVEs affecting Kaspernj Form-data-objectizer: 1 record(s), with affected versions and fixes.

CVE-2026-46510 High · 8.2 CWE-1321 May 29, 2026
Prototype pollution in form-data-objectizer via bracket-notation form keys
form-data-objectizer converts FormData to object. Prior to 1.0.1, form-data-objectizer walks bracket-notation form keys (e.g. name[sub]) into nested objects without filtering __proto__, constructor, or prototype. A single HTTP form field whose name starts with __proto__[...] causes the library to mutate Object.prototype, which is a prototype pollution primitive of the entire Node.js process. This vulnerability is fixed in 1.0.1.