The multipart default value of part_limit is 128. We have forms w…

…ith more than 128 fields - choosing 1024 as a safe upper limit.

CHANGES.rst

@@ -7,6 +7,8 @@
 
 - Replace deprecated multipart argument ``memfile_limit`` with ``spool_limit``
 
+- The multipart default value of ``part_limit`` is 128. We have forms with
+  more than 128 fields - choosing 1024 as a safe upper limit.
 
 7.1 (2024-09-27)
 ================

src/zope/publisher/browser.py

@@ -341,7 +341,8 @@ def processInputs(self):
             if env.get('CONTENT_LENGTH') == '':
                 env.pop('CONTENT_LENGTH')
             forms, files = multipart.parse_form_data(
-                env, charset=self.default_form_charset, spool_limit=0)
+                env, charset=self.default_form_charset, part_limit=1024,
+                spool_limit=0)
             items.extend(forms.iterallitems())
             for key, item in files.iterallitems():
                 # multipart puts fields in 'files' even if no upload was