diff --git a/backend/src/main/java/com/ai/lawyer/global/qdrant/service/QdrantService.java b/backend/src/main/java/com/ai/lawyer/global/qdrant/service/QdrantService.java
index eeac9361..7be6a003 100644
--- a/backend/src/main/java/com/ai/lawyer/global/qdrant/service/QdrantService.java
+++ b/backend/src/main/java/com/ai/lawyer/global/qdrant/service/QdrantService.java
@@ -7,6 +7,7 @@
 import org.springframework.ai.vectorstore.filter.Filter;
 import org.springframework.stereotype.Service;
 
+import java.util.Collections;
 import java.util.List;
 
 @Service
@@ -24,7 +25,17 @@ public List<Document> searchDocument(String query, String key, String value, int
                 .build();
         List<Document> similarCaseDocuments = vectorStore.similaritySearch(caseSearchRequest);
 
+        if (caseSearchRequest == null) {
+            return Collections.singletonList(
+                    Document.builder()
+                            .text("더미")
+                            .metadata(key, value)
+                            .score(0.0)
+                            .build()
+            );
+        }
+
         return similarCaseDocuments;
     }
 
-}
+}
\ No newline at end of file
diff --git a/backend/src/main/java/com/ai/lawyer/global/security/SecurityConfig.java b/backend/src/main/java/com/ai/lawyer/global/security/SecurityConfig.java
index 5b79a688..6e20d14d 100644
--- a/backend/src/main/java/com/ai/lawyer/global/security/SecurityConfig.java
+++ b/backend/src/main/java/com/ai/lawyer/global/security/SecurityConfig.java
@@ -47,6 +47,7 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                         .requestMatchers("/api/law/**").permitAll()
                         .requestMatchers("/api/law-word/**").permitAll()
                         .requestMatchers("/h2-console/**").permitAll()
+                        .requestMatchers("/api/chat/**").permitAll()
                         .anyRequest().authenticated()
                 )
                 // JWT 필터 추가