diff --git a/addons/web/models/ir_http.py b/addons/web/models/ir_http.py
index 238009c10b2..1b4370d0fcd 100644
--- a/addons/web/models/ir_http.py
+++ b/addons/web/models/ir_http.py
@@ -27,6 +27,11 @@ class Http(models.AbstractModel):
 
         user_context = request.session.get_context() if request.session.uid else {}
         IrConfigSudo = self.env['ir.config_parameter'].sudo()
+        max_file_upload_size = int(IrConfigSudo.get_param(
+            'web.max_file_upload_size',
+            default=128 * 1024 * 1024,  # 128MiB
+        ))
+
         session_info = {
             "uid": request.session.uid,
             "is_system": user._is_system() if request.session.uid else False,
@@ -45,6 +50,7 @@ class Http(models.AbstractModel):
             'profile_session': request.session.profile_session,
             'profile_collectors': request.session.profile_collectors,
             'profile_params': request.session.profile_params,
+            "max_file_upload_size": max_file_upload_size,
         }
         if self.env.user.has_group('base.group_user'):
             # the following is only useful in the context of a webclient bootstrapping
diff --git a/addons/web/static/src/js/fields/basic_fields.js b/addons/web/static/src/js/fields/basic_fields.js
index 8c3072c267a..5c8f66cfa7b 100644
--- a/addons/web/static/src/js/fields/basic_fields.js
+++ b/addons/web/static/src/js/fields/basic_fields.js
@@ -1856,7 +1856,7 @@ var AbstractFieldBinary = AbstractField.extend({
         this._super.apply(this, arguments);
         this.fields = record.fields;
         this.useFileAPI = !!window.FileReader;
-        this.max_upload_size = 64 * 1024 * 1024; // 64Mo
+        this.max_upload_size = session.max_file_upload_size || 128 * 1024 * 1024;
         this.accepted_file_extensions = (this.nodeOptions && this.nodeOptions.accepted_file_extensions) || this.accepted_file_extensions || '*';
         if (!this.useFileAPI) {
             var self = this;