Newtonsoft Json Dll Jun 2026

Newtonsoft.Json.dll, also known as JSON.NET, is a widely-used .NET library for working with JSON data. Developed by James Newton-King, it provides a simple and efficient way to serialize and deserialize JSON data in .NET applications.

string json = @" 'store': 'book': [ 'title': 'The Hobbit' ] "; JObject obj = JObject.Parse(json); string title = obj["store"]["book"][0]["title"].ToString(); obj["store"]["book"][0]["price"] = 12.99; // Modify in place newtonsoft json dll

Newtonsoft.Json has had its share of CVEs. Most stem from using TypeNameHandling on untrusted input—a classic deserialization vulnerability that can lead to remote code execution. Newtonsoft

Microsoft’s System.Text.Json is the future for high-performance, modern cloud-native apps. But Newtonsoft.Json is the reliable, duct-tape-and-ingenuity library that still holds vast swaths of the .NET ecosystem together. It didn't just solve JSON serialization—it defined it. Most stem from using TypeNameHandling on untrusted input—a

Includes functionality to convert between JSON and XML, and supports the BSON format .