diff --git a/tests/requests/invalid/rfc9112_target_authority_non_connect_01.http b/tests/requests/invalid/rfc9112_target_authority_non_connect_01.http
new file mode 100644
index 00000000..0b8e978f
--- /dev/null
+++ b/tests/requests/invalid/rfc9112_target_authority_non_connect_01.http
@@ -0,0 +1,3 @@
+GET example.com:443 HTTP/1.1\r\n
+Host: example.com:443\r\n
+\r\n
diff --git a/tests/requests/invalid/rfc9112_target_authority_non_connect_01.py b/tests/requests/invalid/rfc9112_target_authority_non_connect_01.py
new file mode 100644
index 00000000..2a91f311
--- /dev/null
+++ b/tests/requests/invalid/rfc9112_target_authority_non_connect_01.py
@@ -0,0 +1,10 @@
+#
+# This file is part of gunicorn released under the MIT license.
+# See the NOTICE for more information.
+
+# RFC 9112 section 3.2.3: authority-form ("host:port") is only valid with
+# the CONNECT method. Any other method carrying it must be rejected.
+from gunicorn.http.errors import InvalidRequestLine
+request = InvalidRequestLine
+# The C parser (gunicorn_h1c) does not yet enforce this rule.
+python_only = True