diff --git a/scripts/check-game-distribution-media-e2e.mjs b/scripts/check-game-distribution-media-e2e.mjs
index 89f95f49a..85c4486d2 100644
--- a/scripts/check-game-distribution-media-e2e.mjs
+++ b/scripts/check-game-distribution-media-e2e.mjs
@@ -606,6 +606,39 @@ async function main() {
     `status=${readBefore.status}`,
   );
 
+  // 6b. owner 作用域：作者本人在待审期间就能预览自己作品的封面
+  const ownerRead = await api(
+    `/api/game-distribution/my-games/${gameId}/media/read-url?objectKey=${encodeURIComponent(created.data.coverObjectKey)}`,
+    { token: author },
+  );
+  check(
+    '作者本人可经 owner 路由预览未公开作品封面',
+    ownerRead.status === 200 &&
+      Boolean(ownerRead.data?.read?.signedUrl ?? ownerRead.data?.signedUrl),
+    `status=${ownerRead.status} ${ownerRead.text.slice(0, 200)}`,
+  );
+
+  // 6c. owner 路由必须带令牌：匿名走 owner 路由被拒，不会退化成公开读
+  const ownerReadAnonymous = await api(
+    `/api/game-distribution/my-games/${gameId}/media/read-url?objectKey=${encodeURIComponent(created.data.coverObjectKey)}`,
+  );
+  check(
+    'owner 路由不带令牌被拒',
+    ownerReadAnonymous.status === 401,
+    `status=${ownerReadAnonymous.status}`,
+  );
+
+  // 6d. owner 路由只认自己作品当前行的媒体：同作者拿别人的 objectKey 换不出来
+  const ownerReadForeignKey = await api(
+    `/api/game-distribution/my-games/${gameId}/media/read-url?objectKey=${encodeURIComponent('agc/project-snapshots/v1/game-distribution/media/other/cover-other.png')}`,
+    { token: author },
+  );
+  check(
+    'owner 路由拒绝非本作品媒体的 objectKey',
+    ownerReadForeignKey.status === 404,
+    `status=${ownerReadForeignKey.status}`,
+  );
+
   // 7. 管理员审核通过（发行入口由服务端按部署模板与 gameId 派生；管理员 token 在步骤 1.1 已取得）
   const approved = await api(
     `/admin/api/game-distribution/versions/${versionId}/review`,