diff --git a/django/utils/http.py b/django/utils/http.py
index 3d5b7b6be6aa..a892221f0190 100644
--- a/django/utils/http.py
+++ b/django/utils/http.py
@@ -420,7 +420,7 @@ def content_disposition_header(as_attachment, filename):
         # characters from 0x21 to 0x7e, except 0x22 (`"`) and 0x5C (`\`) which
         # can still be expressed but must be escaped with their own `\`.
         # https://datatracker.ietf.org/doc/html/rfc9110#name-quoted-strings
-        quotable_characters = r"^[\t \x21-\x7e]*$"
+        quotable_characters = r"^[\t \x21-\x7e]*\Z"
         if is_ascii and re.match(quotable_characters, filename):
             file_expr = 'filename="{}"'.format(
                 filename.replace("\\", "\\\\").replace('"', r"\"")
diff --git a/tests/utils_tests/test_http.py b/tests/utils_tests/test_http.py
index f7525885c2d2..82ce14721334 100644
--- a/tests/utils_tests/test_http.py
+++ b/tests/utils_tests/test_http.py
@@ -644,6 +644,8 @@ def test_basic(self):
                 "attachment; filename*=utf-8''%22esp%C3%A9cimen%22%20filename",
             ),
             ((True, "some\nfile"), "attachment; filename*=utf-8''some%0Afile"),
+            ((True, "\n"), "attachment; filename*=utf-8''%0A"),
+            ((True, "example\n"), "attachment; filename*=utf-8''example%0A"),
         )
 
         for (is_attachment, filename), expected in tests: