diff --git a/src/app/AttributeCache.cpp b/src/app/AttributeCache.cpp
index 349a8563636144..34fe0586ab2efd 100644
--- a/src/app/AttributeCache.cpp
+++ b/src/app/AttributeCache.cpp
@@ -115,12 +115,23 @@ void AttributeCache::OnAttributeData(const ConcreteDataAttributePath & aPath, TL
     //
     VerifyOrDie(!aPath.IsListItemOperation());
 
+    // Copy the reader for forwarding
+    TLV::TLVReader * pDataCopy = nullptr;
+    if (apData)
+    {
+        pDataCopy = Platform::New<TLV::TLVReader>(*apData);
+    }
+
     UpdateCache(aPath, apData, aStatus);
 
     //
     // Forward the call through.
     //
-    mCallback.OnAttributeData(aPath, apData, aStatus);
+    mCallback.OnAttributeData(aPath, pDataCopy, aStatus);
+    if (pDataCopy)
+    {
+        Platform::Delete(pDataCopy);
+    }
 }
 
 CHIP_ERROR AttributeCache::Get(const ConcreteAttributePath & path, TLV::TLVReader & reader)