diff --git a/NEWS b/NEWS
index 35388b768f7f7..7b525d6f9189c 100644
--- a/NEWS
+++ b/NEWS
@@ -2,7 +2,9 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.1.15
 
-
+- Core:
+  . Fixed bug GH-10092 (Internal stream casting should not emit lost bytes
+    warning twice). (Girgias)
 
 05 Jan 2023, PHP 8.1.14
 
diff --git a/ext/standard/tests/file/gh10092.phpt b/ext/standard/tests/file/gh10092.phpt
new file mode 100644
index 0000000000000..1cad41d2102aa
--- /dev/null
+++ b/ext/standard/tests/file/gh10092.phpt
@@ -0,0 +1,9 @@
+--TEST--
+Bug GH-10092 (Internal stream casting should not emit lost bytes warning twice)
+--FILE--
+<?php
+$handle = fopen('http://example.com', 'r');
+var_dump(stream_isatty($handle));
+?>
+--EXPECT--
+bool(false)
diff --git a/main/streams/cast.c b/main/streams/cast.c
index db0f039eae139..8cc4044c7915e 100644
--- a/main/streams/cast.c
+++ b/main/streams/cast.c
@@ -317,7 +317,9 @@ PHPAPI int _php_stream_cast(php_stream *stream, int castas, void **ret, int show
 
 exit_success:
 
-	if ((stream->writepos - stream->readpos) > 0 &&
+	if (
+		show_err &&
+		(stream->writepos - stream->readpos) > 0 &&
 		stream->fclose_stdiocast != PHP_STREAM_FCLOSE_FOPENCOOKIE &&
 		(flags & PHP_STREAM_CAST_INTERNAL) == 0
 	) {