diff --git a/baseapp/abci.go b/baseapp/abci.go
index 33eb1d187d56..b7b187151b9e 100644
--- a/baseapp/abci.go
+++ b/baseapp/abci.go
@@ -900,14 +900,29 @@ func (app *BaseApp) internalFinalizeBlock(ctx context.Context, req *abci.Finaliz
 
 func (app *BaseApp) executeTxs(ctx context.Context, txs [][]byte) ([]*abci.ExecTxResult, error) {
 	if app.txExecutor != nil {
-		return app.txExecutor(ctx, len(txs), app.finalizeBlockState.ms, func(i int, ms storetypes.MultiStore, incarnationCache map[string]any) *abci.ExecTxResult {
-			return app.deliverTxWithMultiStore(txs[i], i, ms, incarnationCache)
+		return app.txExecutor(ctx, txs, app.finalizeBlockState.ms, func(i int, memTx sdk.Tx, ms storetypes.MultiStore, incarnationCache map[string]any) *abci.ExecTxResult {
+			return app.deliverTxWithMultiStore(txs[i], memTx, i, ms, incarnationCache)
 		})
 	}
 
 	txResults := make([]*abci.ExecTxResult, 0, len(txs))
 	for i, rawTx := range txs {
-		response := app.deliverTx(rawTx, i)
+		var response *abci.ExecTxResult
+
+		if memTx, err := app.txDecoder(rawTx); err == nil {
+			response = app.deliverTx(rawTx, memTx, i)
+		} else {
+			// In the case where a transaction included in a block proposal is malformed,
+			// we still want to return a default response to comet. This is because comet
+			// expects a response for each transaction included in a block proposal.
+			response = responseExecTxResultWithEvents( // TODO
+				sdkerrors.ErrTxDecode,
+				0,
+				0,
+				nil,
+				false,
+			)
+		}
 		// check after every tx if we should abort
 		select {
 		case <-ctx.Done():
diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index 5fab3c47ee38..00ec2ded517d 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -772,11 +772,11 @@ func (app *BaseApp) beginBlock(_ *abci.FinalizeBlockRequest) (sdk.BeginBlock, er
 	return resp, nil
 }
 
-func (app *BaseApp) deliverTx(tx []byte, txIndex int) *abci.ExecTxResult {
-	return app.deliverTxWithMultiStore(tx, txIndex, nil, nil)
+func (app *BaseApp) deliverTx(tx []byte, memTx sdk.Tx, txIndex int) *abci.ExecTxResult {
+	return app.deliverTxWithMultiStore(tx, memTx, txIndex, nil, nil)
 }
 
-func (app *BaseApp) deliverTxWithMultiStore(tx []byte, txIndex int, txMultiStore storetypes.MultiStore, incarnationCache map[string]any) *abci.ExecTxResult {
+func (app *BaseApp) deliverTxWithMultiStore(tx []byte, memTx sdk.Tx, txIndex int, txMultiStore storetypes.MultiStore, incarnationCache map[string]any) *abci.ExecTxResult {
 	gInfo := sdk.GasInfo{}
 	resultStr := "successful"
 
@@ -789,7 +789,7 @@ func (app *BaseApp) deliverTxWithMultiStore(tx []byte, txIndex int, txMultiStore
 		telemetry.SetGauge(float32(gInfo.GasWanted), "tx", "gas", "wanted")
 	}()
 
-	gInfo, result, anteEvents, err := app.runTxWithMultiStore(execModeFinalize, tx, nil, txIndex, txMultiStore, incarnationCache)
+	gInfo, result, anteEvents, err := app.runTxWithMultiStore(execModeFinalize, tx, memTx, txIndex, txMultiStore, incarnationCache)
 	if err != nil {
 		resultStr = "failed"
 		resp = responseExecTxResultWithEvents(
diff --git a/baseapp/genesis.go b/baseapp/genesis.go
index 199cd63da324..def709b4e439 100644
--- a/baseapp/genesis.go
+++ b/baseapp/genesis.go
@@ -8,7 +8,7 @@ import (
 
 // ExecuteGenesisTx implements a genesis TxHandler used to execute a genTxs (from genutil).
 func (app *BaseApp) ExecuteGenesisTx(tx []byte) error {
-	res := app.deliverTx(tx, -1)
+	res := app.deliverTx(tx, nil, -1)
 
 	if res.Code != types.CodeTypeOK {
 		return errors.New(res.Log)
diff --git a/baseapp/txexecutor.go b/baseapp/txexecutor.go
index 82649036dba0..b09c204e06c0 100644
--- a/baseapp/txexecutor.go
+++ b/baseapp/txexecutor.go
@@ -4,13 +4,14 @@ import (
 	"context"
 
 	abci "github.com/cometbft/cometbft/abci/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
 
 	"cosmossdk.io/store/types"
 )
 
 type TxExecutor func(
 	ctx context.Context,
-	blockSize int,
+	block [][]byte,
 	cms types.MultiStore,
-	deliverTxWithMultiStore func(int, types.MultiStore, map[string]any) *abci.ExecTxResult,
+	deliverTxWithMultiStore func(int, sdk.Tx, types.MultiStore, map[string]any) *abci.ExecTxResult,
 ) ([]*abci.ExecTxResult, error)