diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5fc8cb2f8..eaa3162e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+* Fixed deadlock in `Endpoint.String()` method
+
 ## v3.118.3
 * Fixed `context` checking in `ydb.Open`
 
diff --git a/internal/endpoint/endpoint.go b/internal/endpoint/endpoint.go
index b51f0578e..2f209d344 100644
--- a/internal/endpoint/endpoint.go
+++ b/internal/endpoint/endpoint.go
@@ -87,7 +87,7 @@ func (e *endpoint) String() string {
 
 	return fmt.Sprintf(`{id:%d,address:%q,local:%t,location:%q,loadFactor:%f,lastUpdated:%q}`,
 		e.id,
-		e.Address(),
+		e.getAddress(), // Use getAddress() to avoid deadlock from nested RLock in Address()
 		e.local,
 		e.location,
 		e.loadFactor,
@@ -125,6 +125,12 @@ func (e *endpoint) Address() (address string) {
 	e.mu.RLock()
 	defer e.mu.RUnlock()
 
+	return e.getAddress()
+}
+
+// getAddress returns the address without acquiring a lock.
+// Caller must ensure the lock is held.
+func (e *endpoint) getAddress() string {
 	if len(e.ipv4) != 0 {
 		return getResolvedAddr(e, false)
 	}