diff --git a/kitty/window.py b/kitty/window.py
index e808b4fcd..1abf18aa2 100644
--- a/kitty/window.py
+++ b/kitty/window.py
@@ -1470,7 +1470,7 @@ class Window:
         btext = text.encode('utf-8')
         if 'confirm' in opts.paste_actions:
             sanitized = sanitize_control_codes(text)
-            if sanitized != text:
+            if sanitized != text or (not self.screen.in_bracketed_paste_mode and re.search(r'[\r\n]', text) is not None):
                 msg = _('The text to be pasted contains terminal control codes.\n\nIf the terminal program you are pasting into does not properly'
                         ' sanitize pasted text, this can lead to \x1b[31mcode execution vulnerabilities\x1b[39m.\n\nHow would you like to proceed?')
                 get_boss().choose(