diff --git a/esphome/components/image/__init__.py b/esphome/components/image/__init__.py
index f880b5f736..bf25a7cd92 100644
--- a/esphome/components/image/__init__.py
+++ b/esphome/components/image/__init__.py
@@ -671,18 +671,33 @@ async def write_image(config, all_frames=False):
     resize = config.get(CONF_RESIZE)
     if is_svg_file(path):
         # Local import so use of non-SVG files needn't require cairosvg installed
+        from pyexpat import ExpatError
+        from xml.etree.ElementTree import ParseError
+
         from cairosvg import svg2png
+        from cairosvg.helpers import PointError
 
         if not resize:
             resize = (None, None)
-        with open(path, "rb") as file:
-            image = svg2png(
-                file_obj=file,
-                output_width=resize[0],
-                output_height=resize[1],
-            )
-        image = Image.open(io.BytesIO(image))
-        width, height = image.size
+        try:
+            with open(path, "rb") as file:
+                image = svg2png(
+                    file_obj=file,
+                    output_width=resize[0],
+                    output_height=resize[1],
+                )
+            image = Image.open(io.BytesIO(image))
+            width, height = image.size
+        except (
+            ValueError,
+            ParseError,
+            IndexError,
+            ExpatError,
+            AttributeError,
+            TypeError,
+            PointError,
+        ) as e:
+            raise core.EsphomeError(f"Could not load SVG image {path}: {e}") from e
     else:
         image = Image.open(path)
         width, height = image.size
diff --git a/esphome/components/web_server/web_server.cpp b/esphome/components/web_server/web_server.cpp
index e18a92a956..fbff1a1cc8 100644
--- a/esphome/components/web_server/web_server.cpp
+++ b/esphome/components/web_server/web_server.cpp
@@ -220,50 +220,51 @@ void DeferredUpdateEventSourceList::add_new_client(WebServer *ws, AsyncWebServer
   DeferredUpdateEventSource *es = new DeferredUpdateEventSource(ws, "/events");
   this->push_back(es);
 
-  es->onConnect([this, ws, es](AsyncEventSourceClient *client) {
-    ws->defer([this, ws, es]() { this->on_client_connect_(ws, es); });
-  });
+  es->onConnect([this, es](AsyncEventSourceClient *client) { this->on_client_connect_(es); });
 
-  es->onDisconnect([this, ws, es](AsyncEventSourceClient *client) {
-    ws->defer([this, es]() { this->on_client_disconnect_((DeferredUpdateEventSource *) es); });
-  });
+  es->onDisconnect([this, es](AsyncEventSourceClient *client) { this->on_client_disconnect_(es); });
 
   es->handleRequest(request);
 }
 
-void DeferredUpdateEventSourceList::on_client_connect_(WebServer *ws, DeferredUpdateEventSource *source) {
-  // Configure reconnect timeout and send config
-  // this should always go through since the AsyncEventSourceClient event queue is empty on connect
-  std::string message = ws->get_config_json();
-  source->try_send_nodefer(message.c_str(), "ping", millis(), 30000);
+void DeferredUpdateEventSourceList::on_client_connect_(DeferredUpdateEventSource *source) {
+  WebServer *ws = source->web_server_;
+  ws->defer([this, ws, source]() {
+    // Configure reconnect timeout and send config
+    // this should always go through since the AsyncEventSourceClient event queue is empty on connect
+    std::string message = ws->get_config_json();
+    source->try_send_nodefer(message.c_str(), "ping", millis(), 30000);
 
 #ifdef USE_WEBSERVER_SORTING
-  for (auto &group : ws->sorting_groups_) {
-    json::JsonBuilder builder;
-    JsonObject root = builder.root();
-    root["name"] = group.second.name;
-    root["sorting_weight"] = group.second.weight;
-    message = builder.serialize();
+    for (auto &group : ws->sorting_groups_) {
+      json::JsonBuilder builder;
+      JsonObject root = builder.root();
+      root["name"] = group.second.name;
+      root["sorting_weight"] = group.second.weight;
+      message = builder.serialize();
 
-    // up to 31 groups should be able to be queued initially without defer
-    source->try_send_nodefer(message.c_str(), "sorting_group");
-  }
+      // up to 31 groups should be able to be queued initially without defer
+      source->try_send_nodefer(message.c_str(), "sorting_group");
+    }
 #endif
 
-  source->entities_iterator_.begin(ws->include_internal_);
+    source->entities_iterator_.begin(ws->include_internal_);
 
-  // just dump them all up-front and take advantage of the deferred queue
-  //     on second thought that takes too long, but leaving the commented code here for debug purposes
-  // while(!source->entities_iterator_.completed()) {
-  //  source->entities_iterator_.advance();
-  //}
+    // just dump them all up-front and take advantage of the deferred queue
+    //     on second thought that takes too long, but leaving the commented code here for debug purposes
+    // while(!source->entities_iterator_.completed()) {
+    //  source->entities_iterator_.advance();
+    //}
+  });
 }
 
 void DeferredUpdateEventSourceList::on_client_disconnect_(DeferredUpdateEventSource *source) {
-  // This method was called via WebServer->defer() and is no longer executing in the
-  // context of the network callback. The object is now dead and can be safely deleted.
-  this->remove(source);
-  delete source;  // NOLINT
+  source->web_server_->defer([this, source]() {
+    // This method was called via WebServer->defer() and is no longer executing in the
+    // context of the network callback. The object is now dead and can be safely deleted.
+    this->remove(source);
+    delete source;  // NOLINT
+  });
 }
 #endif
 
diff --git a/esphome/components/web_server/web_server.h b/esphome/components/web_server/web_server.h
index 39d836b9a0..d067052cbd 100644
--- a/esphome/components/web_server/web_server.h
+++ b/esphome/components/web_server/web_server.h
@@ -141,7 +141,7 @@ class DeferredUpdateEventSource : public AsyncEventSource {
 
 class DeferredUpdateEventSourceList : public std::list<DeferredUpdateEventSource *> {
  protected:
-  void on_client_connect_(WebServer *ws, DeferredUpdateEventSource *source);
+  void on_client_connect_(DeferredUpdateEventSource *source);
   void on_client_disconnect_(DeferredUpdateEventSource *source);
 
  public: