GO-2026-4341

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GO-2026-4341

Summary: Memory exhaustion in query parameter parsing in net/url

Details: The net/url package does not set a limit on the number of query parameters in a query. While the maximum size of query parameters in URLs is generally limited by the maximum request header size, the net/http.Request.ParseForm method can parse large URL-encoded forms. Parsing a large form containing many unique query parameters can cause excessive memory consumption.

References: https://go.dev/cl/736712, https://go.dev/issue/77101, https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc