diff --git a/src/main/java/com/onebridge/ouch/security/SecurityConfig.java b/src/main/java/com/onebridge/ouch/security/SecurityConfig.java
index d842b5d..7b4defa 100644
--- a/src/main/java/com/onebridge/ouch/security/SecurityConfig.java
+++ b/src/main/java/com/onebridge/ouch/security/SecurityConfig.java
@@ -1,5 +1,8 @@
 package com.onebridge.ouch.security;
 
+import java.util.List;
+
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
@@ -11,6 +14,7 @@
 import org.springframework.web.cors.CorsConfiguration;
 import org.springframework.web.cors.CorsConfigurationSource;
 import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.filter.CorsFilter;
 
 import com.onebridge.ouch.security.filter.JwtAuthenticationFilter;
 import com.onebridge.ouch.security.tokenManger.TokenManager;
@@ -64,4 +68,27 @@ public CorsConfigurationSource corsConfigurationSource() {
 		source.registerCorsConfiguration("/**", configuration);
 		return source;
 	}
+
+	// CORS 필터 우선순위 추가
+	// http.cors() 설정은 Spring Security가 인식할 수 있도록 등록하는 용도
+	// 그런데 Spring Security의 인증 필터가 우선 적용돼서 OPTIONS 요청이 필터에서 차단되는 경우가 있음
+	// 그래서 별도로 FilterRegistrationBean<CorsFilter>를 추가하면 이 필터가 모든 요청에서 가장 우선 실행되어서 확실히 적용됨
+	@Bean
+	public FilterRegistrationBean<CorsFilter> corsFilter() {
+		CorsConfiguration config = new CorsConfiguration();
+		config.setAllowCredentials(true);
+		config.setAllowedOrigins(List.of(
+			"http://localhost:5173",
+			"https://ouchs.netlify.app"
+		));
+		config.addAllowedHeader("*");
+		config.addAllowedMethod("*");
+
+		UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+		source.registerCorsConfiguration("/**", config);
+
+		FilterRegistrationBean<CorsFilter> bean = new FilterRegistrationBean<>(new CorsFilter(source));
+		bean.setOrder(0); // 필터 최우선 순위 설정
+		return bean;
+	}
 }