diff --git a/changes/20250911152014.bugfix b/changes/20250911152014.bugfix
new file mode 100644
index 0000000000..67bf1fd60c
--- /dev/null
+++ b/changes/20250911152014.bugfix
@@ -0,0 +1 @@
+:bug: `subprocess` Make sure that newSubProcess supports overriding the stdin, stdout, and stderr
diff --git a/utils/subprocess/executor.go b/utils/subprocess/executor.go
index 54c0345d64..099a105d68 100644
--- a/utils/subprocess/executor.go
+++ b/utils/subprocess/executor.go
@@ -51,7 +51,7 @@ func NewWithEnvironmentWithIO(ctx context.Context, loggers logs.Loggers, io ICom
 // newSubProcess creates a subprocess description with custom IO
 func newSubProcess(ctx context.Context, loggers logs.Loggers, io ICommandIO, env []string, messageOnStart string, messageOnSuccess, messageOnFailure string, as *commandUtils.CommandAsDifferentUser, cmd string, args ...string) (p *Subprocess, err error) {
 	p = new(Subprocess)
-	err = p.SetupAsWithEnvironment(ctx, loggers, env, messageOnStart, messageOnSuccess, messageOnFailure, as, cmd, args...)
+	err = p.SetupAsWithEnvironmentWithCustomIO(ctx, loggers, io, env, messageOnStart, messageOnSuccess, messageOnFailure, as, cmd, args...)
 	return
 }