diff --git a/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickTaskMapper.java b/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickTaskMapper.java
index 95cae6f99..13b4dc309 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickTaskMapper.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickTaskMapper.java
@@ -2,6 +2,7 @@ package com.baiyue.firstleg.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.baiyue.firstleg.entity.LoadingPickTaskEntity;
+import com.baiyue.firstleg.entity.ContainerBookingEntity;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.Select;
@@ -44,6 +45,12 @@ public interface LoadingPickTaskMapper extends BaseMapper<LoadingPickTaskEntity>
         + "AND task.loading_plan_id=#{loadingPlanId} AND booking.warehouse_id=#{warehouseId} LIMIT 1")
     LoadingPickTaskEntity selectLoadingByPlan(@Param("loadingPlanId") long loadingPlanId, @Param("warehouseId") long warehouseId);
 
+    @Select("SELECT booking.* FROM fl_loading_pick_task task "
+        + "JOIN fl_loading_plan plan ON plan.id=task.loading_plan_id "
+        + "JOIN fl_container_booking booking ON booking.id=plan.container_booking_id "
+        + "WHERE task.id=#{taskId} AND booking.record_status='ACTIVE'")
+    ContainerBookingEntity selectActiveBookingByTask(@Param("taskId") long taskId);
+
     @Select("""
         <script>
         SELECT task.id AS taskId, task.loading_plan_id AS loadingPlanId,
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java
index aeea11a17..0c0222f0d 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java
@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baiyue.firstleg.entity.LoadingPickItemEntity;
 import com.baiyue.firstleg.entity.LoadingPickHistoryEntity;
 import com.baiyue.firstleg.entity.LoadingPickTaskEntity;
+import com.baiyue.firstleg.entity.ContainerBookingEntity;
 import com.baiyue.firstleg.mapper.LoadingPickHistoryMapper;
 import com.baiyue.firstleg.entity.LoadingPlanItemEntity;
 import com.baiyue.firstleg.mapper.LoadingPickItemMapper;
@@ -81,6 +82,10 @@ public class LoadingPickRepository {
         return tasks.selectPendingForOperator(operatorId, keyword);
     }
 
+    public ContainerBookingEntity activeBookingByTask(long taskId) {
+        return tasks.selectActiveBookingByTask(taskId);
+    }
+
     public LoadingPickItemEntity item(long taskId, long itemId) {
         return items.selectOne(new LambdaQueryWrapper<LoadingPickItemEntity>()
             .eq(LoadingPickItemEntity::getPickTaskId, taskId)
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
index f7109ea83..62c1a9c9b 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
@@ -607,8 +607,8 @@ public class LoadingPickService {
         String workflowStatus = "COMPLETED".equals(task.getTaskStatus()) ? "COMPLETED"
             : assigned == null ? "UNASSIGNED"
             : repository.allTaskItemsResolved(task.getId()) ? "AWAITING_REVIEW" : "IN_PROGRESS";
-        var booking = smartLoadingRepository.booking(task.getContainerBookingId());
-        if (booking == null || !"ACTIVE".equals(booking.getRecordStatus())) {
+        var booking = repository.activeBookingByTask(task.getId());
+        if (booking == null || !Objects.equals(task.getContainerBookingId(), booking.getId())) {
             throw new BizException(ResultCode.NOT_FOUND, "PDA拣货任务不存在或柜次已非有效存续记录");
         }
         var owners = repository.inboundOwners(task.getId());
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickPdaTaskSqlContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickPdaTaskSqlContractTest.java
index 941974e4c..22b555ffe 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickPdaTaskSqlContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickPdaTaskSqlContractTest.java
@@ -50,4 +50,17 @@ class LoadingPickPdaTaskSqlContractTest {
             .contains("label.inbound_detail_id = plan_item.inbound_detail_id")
             .contains("label.box_code AS boxCode");
     }
+
+    @Test
+    void taskDetailResolvesOnlyTheActiveBookingOwnedByItsCurrentPlan() throws Exception {
+        String sql = LoadingPickTaskMapper.class
+            .getDeclaredMethod("selectActiveBookingByTask", long.class)
+            .getAnnotation(Select.class).value()[0];
+
+        assertThat(sql)
+            .contains("plan.id=task.loading_plan_id")
+            .contains("booking.id=plan.container_booking_id")
+            .contains("task.id=#{taskId}")
+            .contains("booking.record_status='ACTIVE'");
+    }
 }
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
index b75975979..c146edcd5 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
@@ -79,7 +79,7 @@ class LoadingPickServiceTest {
         booking.setContainerNo("CSLU1234567");
         booking.setSourceType("SIMULATION");
         booking.setRecordStatus("ACTIVE");
-        when(smartLoadingRepository.booking(99L)).thenReturn(booking);
+        when(repository.activeBookingByTask(20L)).thenReturn(booking);
     }
 
     @Test
@@ -228,6 +228,7 @@ class LoadingPickServiceTest {
         when(repository.taskByCabinet("CAB-001", 101L)).thenReturn(task);
         when(repository.taskByPlan(10L, 101L)).thenReturn(task);
         when(smartLoadingRepository.booking(40L)).thenReturn(booking);
+        when(repository.activeBookingByTask(20L)).thenReturn(booking);
         when(repository.items(20L, 101L)).thenReturn(List.of());
         when(repository.cartonLabels(20L)).thenReturn(List.of());
 
@@ -272,13 +273,8 @@ class LoadingPickServiceTest {
     @Test
     void taskDetailRejectsMergedContainerSource() {
         LoadingPickTaskEntity task = task();
-        ContainerBookingEntity merged = new ContainerBookingEntity();
-        merged.setId(99L);
-        merged.setSourceType("OCEAN_BOOKING");
-        merged.setRecordStatus("MERGED");
-        merged.setMergedIntoContainerBookingId(88L);
         when(repository.task(20L)).thenReturn(task);
-        when(smartLoadingRepository.booking(99L)).thenReturn(merged);
+        when(repository.activeBookingByTask(20L)).thenReturn(null);
         when(repository.items(20L, 101L)).thenReturn(List.of());
         when(repository.cartonLabels(20L)).thenReturn(List.of());
 
diff --git a/warehouse/src/main/resources/openapi/supplier-frontend-handoff.md b/warehouse/src/main/resources/openapi/supplier-frontend-handoff.md
index 44d7e7b0b..00577b9ac 100644
--- a/warehouse/src/main/resources/openapi/supplier-frontend-handoff.md
+++ b/warehouse/src/main/resources/openapi/supplier-frontend-handoff.md
@@ -225,4 +225,4 @@ pwsh scripts/local-db-full-acceptance.ps1 -DryRun
 node scripts/admin-test-env-acceptance.mjs --modules suppliers
 ```
 
-模块覆盖列表、统计、新增、详情、编辑、启停、重复名称、非法 scope、客户账号权限拒绝、`tenantId != 0` 和错误响应 `requestId/traceId`。本轮代码交付不执行该测试环境命令。
+模块覆盖列表、统计、新增、详情、编辑、启停、重复名称、客户账号权限拒绝、`tenantId != 0` 和错误响应 `requestId/traceId`；同时断言订舱供应商不暴露国内或国外范围字段。本轮代码交付不执行该测试环境命令。