From 069eacfbc0d4c7ca4d93c858a3c6ebdcbf1c9996 Mon Sep 17 00:00:00 2001
From: E <2974895+eduardomozart@users.noreply.github.com>
Date: Tue, 18 Aug 2026 19:07:09 -0300
Subject: [PATCH] fix: ensure HTTP 404 or 500 is returned when image file is
 missing or unreadable

---
 src/nvhttp.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/nvhttp.cpp b/src/nvhttp.cpp
index e260141a7d7..736275781f9 100644
--- a/src/nvhttp.cpp
+++ b/src/nvhttp.cpp
@@ -1241,6 +1241,16 @@ namespace nvhttp {
     auto app_image = proc::proc.get_app_image((int) util::from_view(get_arg(args, "appid")));
 
     std::ifstream in(app_image, std::ios::binary);
+    if (!in.is_open()) {
+      std::error_code ec;
+      if (std::filesystem::exists(app_image, ec)) {
+        response->write(SimpleWeb::StatusCode::server_error_internal_server_error);
+      } else {
+        response->write(SimpleWeb::StatusCode::client_error_not_found);
+      }
+      response->close_connection_after_response = true;
+      return;
+    }
     SimpleWeb::CaseInsensitiveMultimap headers;
     headers.emplace("Content-Type", "image/png");
     response->write(SimpleWeb::StatusCode::success_ok, in, headers);