From e29d98aadb6557921e5d509f3b967e3262f22cb9 Mon Sep 17 00:00:00 2001
From: Nick Cabatoff <ncabatoff@hashicorp.com>
Date: Wed, 23 Aug 2023 11:05:03 -0400
Subject: [PATCH] Work around issue with UNIX domain sockets in api.Client
 addresses (#22523)

The Host part of the URL doesn't actually get used when we initiate connections to UNIX domain sockets.  As of https://github.com/golang/go/issues/60374 (in the latest Go releases at the time of this writing), we must set it to something that looks like a hostname or requests will fail.
---
 api/client.go       | 2 +-
 changelog/22523.txt | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 changelog/22523.txt

diff --git a/api/client.go b/api/client.go
index 0fa00c617e735..1ba9da48eae12 100644
--- a/api/client.go
+++ b/api/client.go
@@ -545,7 +545,7 @@ func (c *Config) ParseAddress(address string) (*url.URL, error) {
 			// be pointing to the protocol used in the application layer and not to
 			// the transport layer. Hence, setting the fields accordingly.
 			u.Scheme = "http"
-			u.Host = socket
+			u.Host = "localhost"
 			u.Path = ""
 		} else {
 			return nil, fmt.Errorf("attempting to specify unix:// address with non-transport transport")
diff --git a/changelog/22523.txt b/changelog/22523.txt
new file mode 100644
index 0000000000000..e53ab652b2e56
--- /dev/null
+++ b/changelog/22523.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+api: Fix breakage with UNIX domain socket addresses introduced by newest Go versions as a security fix.
+```