diff --git a/modules/dnn/src/op_inf_engine.cpp b/modules/dnn/src/op_inf_engine.cpp
index d5f6902..b663428 100644
--- a/modules/dnn/src/op_inf_engine.cpp
+++ b/modules/dnn/src/op_inf_engine.cpp
@@ -53,7 +53,9 @@ Mat infEngineBlobToMat(const ov::Tensor& blob)
         default:
             CV_Error(Error::StsNotImplemented, "Unsupported blob precision");
     }
-    return Mat(size, type, blob.data());
+    // OpenVINO 2026 exposes const data for const tensors, but OpenCV still
+    // wraps infer request buffers in mutable Mats for its existing copy paths.
+    return Mat(size, type, const_cast<void*>(blob.data()));
 }
 
 void infEngineBlobsToMats(const ov::TensorVector& blobs,
diff --git a/modules/gapi/src/backends/ov/govbackend.cpp b/modules/gapi/src/backends/ov/govbackend.cpp
--- a/modules/gapi/src/backends/ov/govbackend.cpp
+++ b/modules/gapi/src/backends/ov/govbackend.cpp
@@ -87,7 +87,7 @@ static ov::element::Type toOV(int depth) {
        case CV_16F: return ov::element::f16;
        default: GAPI_Error("OV Backend: Unsupported data type");
    }
-    return ov::element::undefined;
+    return ov::element::dynamic;
 }
 
 static ov::preprocess::ResizeAlgorithm toOVInterp(int interpolation) {
@@ -141,7 +141,7 @@ static void copyFromOV(const ov::Tensor &tensor, cv::Mat &mat) {
         cv::gimpl::convertInt64ToInt32(tensor.data<int64_t>(),
                                        mat.ptr<int>(),
                                        total);
     } else {
-        std::copy_n(reinterpret_cast<uint8_t*>(tensor.data()),
+        std::copy_n(reinterpret_cast<const uint8_t*>(tensor.data()),
                     tensor.get_byte_size(),
                     mat.ptr<uint8_t>());
     }