diff --git a/CHANGELOG.md b/CHANGELOG.md
index 91bc8dfb58..02f9188fa4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ The format is based on Keep a Changelog, and this project adheres to Semantic Ve
 - Add ability to rollback node's internal state during processing.
 - Change how unsafe protobuf state is created to prevent unnecessary copies.
 - Added benchmarks for process slots for Capella, Deneb, Electra
+- Add helper to cast bytes to string without allocating memory.
 
 ### Changed
 
diff --git a/beacon-chain/p2p/message_id.go b/beacon-chain/p2p/message_id.go
index 9ea7091a86..28355f9197 100644
--- a/beacon-chain/p2p/message_id.go
+++ b/beacon-chain/p2p/message_id.go
@@ -29,7 +29,7 @@ func MsgID(genesisValidatorsRoot []byte, pmsg *pubsubpb.Message) string {
 		// never be hit.
 		msg := make([]byte, 20)
 		copy(msg, "invalid")
-		return string(msg)
+		return bytesutil.UnsafeCastToString(msg)
 	}
 	digest, err := ExtractGossipDigest(*pmsg.Topic)
 	if err != nil {
@@ -37,7 +37,7 @@ func MsgID(genesisValidatorsRoot []byte, pmsg *pubsubpb.Message) string {
 		// never be hit.
 		msg := make([]byte, 20)
 		copy(msg, "invalid")
-		return string(msg)
+		return bytesutil.UnsafeCastToString(msg)
 	}
 	_, fEpoch, err := forks.RetrieveForkDataFromDigest(digest, genesisValidatorsRoot)
 	if err != nil {
@@ -45,7 +45,7 @@ func MsgID(genesisValidatorsRoot []byte, pmsg *pubsubpb.Message) string {
 		// never be hit.
 		msg := make([]byte, 20)
 		copy(msg, "invalid")
-		return string(msg)
+		return bytesutil.UnsafeCastToString(msg)
 	}
 	if fEpoch >= params.BeaconConfig().AltairForkEpoch {
 		return postAltairMsgID(pmsg, fEpoch)
@@ -54,11 +54,11 @@ func MsgID(genesisValidatorsRoot []byte, pmsg *pubsubpb.Message) string {
 	if err != nil {
 		combinedData := append(params.BeaconConfig().MessageDomainInvalidSnappy[:], pmsg.Data...)
 		h := hash.Hash(combinedData)
-		return string(h[:20])
+		return bytesutil.UnsafeCastToString(h[:20])
 	}
 	combinedData := append(params.BeaconConfig().MessageDomainValidSnappy[:], decodedData...)
 	h := hash.Hash(combinedData)
-	return string(h[:20])
+	return bytesutil.UnsafeCastToString(h[:20])
 }
 
 // Spec:
@@ -93,13 +93,13 @@ func postAltairMsgID(pmsg *pubsubpb.Message, fEpoch primitives.Epoch) string {
 			// should never happen
 			msg := make([]byte, 20)
 			copy(msg, "invalid")
-			return string(msg)
+			return bytesutil.UnsafeCastToString(msg)
 		}
 		if uint64(totalLength) > gossipPubSubSize {
 			// this should never happen
 			msg := make([]byte, 20)
 			copy(msg, "invalid")
-			return string(msg)
+			return bytesutil.UnsafeCastToString(msg)
 		}
 		combinedData := make([]byte, 0, totalLength)
 		combinedData = append(combinedData, params.BeaconConfig().MessageDomainInvalidSnappy[:]...)
@@ -107,7 +107,7 @@ func postAltairMsgID(pmsg *pubsubpb.Message, fEpoch primitives.Epoch) string {
 		combinedData = append(combinedData, topic...)
 		combinedData = append(combinedData, pmsg.Data...)
 		h := hash.Hash(combinedData)
-		return string(h[:20])
+		return bytesutil.UnsafeCastToString(h[:20])
 	}
 	totalLength, err := math.AddInt(
 		len(params.BeaconConfig().MessageDomainValidSnappy),
@@ -120,7 +120,7 @@ func postAltairMsgID(pmsg *pubsubpb.Message, fEpoch primitives.Epoch) string {
 		// should never happen
 		msg := make([]byte, 20)
 		copy(msg, "invalid")
-		return string(msg)
+		return bytesutil.UnsafeCastToString(msg)
 	}
 	combinedData := make([]byte, 0, totalLength)
 	combinedData = append(combinedData, params.BeaconConfig().MessageDomainValidSnappy[:]...)
@@ -128,5 +128,5 @@ func postAltairMsgID(pmsg *pubsubpb.Message, fEpoch primitives.Epoch) string {
 	combinedData = append(combinedData, topic...)
 	combinedData = append(combinedData, decodedData...)
 	h := hash.Hash(combinedData)
-	return string(h[:20])
+	return bytesutil.UnsafeCastToString(h[:20])
 }
diff --git a/encoding/bytesutil/bytes.go b/encoding/bytesutil/bytes.go
index 5faebbf526..7dbd6f5609 100644
--- a/encoding/bytesutil/bytes.go
+++ b/encoding/bytesutil/bytes.go
@@ -3,6 +3,7 @@ package bytesutil
 
 import (
 	"fmt"
+	"unsafe"
 
 	"github.com/ethereum/go-ethereum/common/hexutil"
 )
@@ -145,3 +146,10 @@ func ReverseByteOrder(input []byte) []byte {
 	}
 	return b
 }
+
+// UnsafeCastToString casts a byte slice to a string object without performing a copy. Changes
+// to byteSlice will also modify the contents of the string, so it is the caller's responsibility
+// to ensure that the byte slice will not modified after the string is created.
+func UnsafeCastToString(byteSlice []byte) string {
+	return *(*string)(unsafe.Pointer(&byteSlice)) // #nosec G103
+}
diff --git a/encoding/bytesutil/bytes_test.go b/encoding/bytesutil/bytes_test.go
index feffc01d31..6e7c4cfcac 100644
--- a/encoding/bytesutil/bytes_test.go
+++ b/encoding/bytesutil/bytes_test.go
@@ -217,6 +217,50 @@ func TestToBytes20(t *testing.T) {
 	}
 }
 
+func TestCastToString(t *testing.T) {
+	bSlice := []byte{'a', 'b', 'c'}
+	bString := bytesutil.UnsafeCastToString(bSlice)
+
+	originalString := "abc"
+
+	// Mutate original slice to make sure that a copy was not performed.
+	bSlice[0] = 'd'
+	assert.NotEqual(t, originalString, bString)
+	assert.Equal(t, "dbc", bString)
+}
+
+func BenchmarkUnsafeCastToString(b *testing.B) {
+	data := []byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
+	empty := []byte{}
+	var nilData []byte
+
+	b.Run("string(b)", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = string(data)
+			_ = string(empty)
+			_ = string(nilData)
+		}
+	})
+
+	b.Run("bytesutil.UnsafeCastToString(b)", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = bytesutil.UnsafeCastToString(data)
+			_ = bytesutil.UnsafeCastToString(empty)
+			_ = bytesutil.UnsafeCastToString(nilData)
+		}
+	})
+}
+
+func FuzzUnsafeCastToString(f *testing.F) {
+	f.Fuzz(func(t *testing.T, input []byte) {
+		want := string(input)
+		result := bytesutil.UnsafeCastToString(input)
+		if result != want {
+			t.Fatalf("input (%v) result (%s) did not match expected (%s)", input, result, want)
+		}
+	})
+}
+
 func BenchmarkToBytes32(b *testing.B) {
 	x := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
 	for i := 0; i < b.N; i++ {