diff --git a/packages/adapters/redis/feature_flag_store.py b/packages/adapters/redis/feature_flag_store.py
index df857115f..f64f6eb0b 100755
--- a/packages/adapters/redis/feature_flag_store.py
+++ b/packages/adapters/redis/feature_flag_store.py
@@ -84,7 +84,7 @@ class FeatureFlagConfig:
 
         # 基于 identifier 做哈希取模，确保同一用户始终落在同一侧
         if identifier:
-            hash_val = int(hashlib.md5(f"{self.name}:{identifier}".encode("utf-8")).hexdigest(), 16)
+            hash_val = int(hashlib.md5(f"{self.name}:{identifier}".encode("utf-8")).hexdigest(), 16)  # nosec B324 - 用于哈希取模做百分比切流，非安全用途
             return (hash_val % 100) < self.percentage
 
         # 无 identifier 且百分比在 0-100 之间 → 按比例随机（不保证一致性）