A vulnerability was found in net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

Reference: https://github.com/golang/go/issues/29098

Upstream commit: https://github.com/golang/go/commit/61bb56ad63992a3199acc55b2537c8355ef887b6