diff --git a/src/config.h b/src/config.h
index 77e84fafc..4a14cdd6e 100644
--- a/src/config.h
+++ b/src/config.h
@@ -40,7 +40,9 @@ struct Config {
     std::optional<std::string> log_id;
     std::optional<int> log_severity_level;
     std::optional<std::string> enable_profiling;
-    bool use_env_allocators{true};
+    // TODO(baijumeswani): Sharing env allocators across sessions leads to crashes on windows and iOS.
+    //                     Identify the reason for the crash to enable allocator sharing by default.
+    bool use_env_allocators{false};
 
     std::vector<ProviderOptions> provider_options;
   };
@@ -168,4 +170,4 @@ void SetSearchNumber(Config::Search& search, std::string_view name, double value
 void SetSearchBool(Config::Search& search, std::string_view name, bool value);
 bool IsCudaGraphEnabled(Config::SessionOptions& session_options);
 
-}  // namespace Generators
\ No newline at end of file
+}  // namespace Generators