The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send requests containing an invalid Request.Host or Request.URL.Host value.
{
    "cpes": [
        "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}