An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.
https://lists.debian.org/debian-lts-announce/2021/03/msg00015.html
https://lists.debian.org/debian-lts-announce/2021/03/msg00014.html
https://lists.debian.org/debian-lts-announce/2019/04/msg00007.html
https://github.com/golang/go/issues/30794
https://access.redhat.com/errata/RHSA-2019:1519