Uncaught Exception Affecting nodejs package, versions [0,]
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- published25 Mar 2026
- disclosed25 Mar 2026
- credityushengchen
Introduced: 25 Mar 2026
NewCVE-2026-21710 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Uncaught Exception in Node.js HTTP request handling. The flaw triggers when an incoming request includes a header named __proto__ and the server application accesses req.headersDistinct. This causes dest["__proto__"] to incorrectly resolve to Object.prototype, resulting in an uncaught TypeError when .push() is called on a non-array. Because this exception is thrown synchronously inside a property getter, standard error listeners cannot intercept it. This causes the Node.js process to crash unless every access is explicitly wrapped in a try/catch block.