diff --git a/backend/app/services/host_remote_actions.py b/backend/app/services/host_remote_actions.py
index f27149c..397ecff 100644
--- a/backend/app/services/host_remote_actions.py
+++ b/backend/app/services/host_remote_actions.py
@@ -126,7 +126,10 @@ def _poll_ssh_update_log_loop(
         session = SessionLocal()
         try:
             row = session.get(Host, host_id)
-            if row is None or row.agent_update_state != "running":
+            if row is None or (row.agent_update_state or "").strip().lower() != "running":
+                continue
+            payload = dict(row.remote_action or {})
+            if (payload.get("status") or "").strip().lower() != "running":
                 continue
             cfg = get_effective_linux_admin_config(session)
             if not cfg.configured:
@@ -148,7 +151,12 @@ def _poll_ssh_update_log_loop(
                     continue
                 if tail:
                     break
+            session.refresh(row)
+            if (row.agent_update_state or "").strip().lower() != "running":
+                continue
             payload = dict(row.remote_action or {})
+            if (payload.get("status") or "").strip().lower() != "running":
+                continue
             if tail:
                 payload["output"] = tail
                 payload["message"] = "Выполняется обновление… (лог с хоста)"
@@ -339,8 +347,16 @@ def get_remote_action_status(host: Host) -> dict[str, Any]:
     payload = dict(host.remote_action or {})
     if not payload:
         return {"active": False, "host_id": host.id}
-    status = payload.get("status") or host.agent_update_state or "unknown"
-    active = status == "running" or host.agent_update_state == "running"
+    agent_state = (host.agent_update_state or "").strip().lower()
+    if agent_state == "running":
+        active = True
+        status = payload.get("status") or "running"
+    elif agent_state in ("success", "failed"):
+        active = False
+        status = payload.get("status") or agent_state
+    else:
+        status = payload.get("status") or host.agent_update_state or "unknown"
+        active = status == "running"
     return {
         "active": active,
         "host_id": host.id,
diff --git a/backend/app/version.py b/backend/app/version.py
index 41ec9ee..ece43fc 100644
--- a/backend/app/version.py
+++ b/backend/app/version.py
@@ -1,5 +1,5 @@
 """Единый источник версии SAC (API, health, логи, OpenAPI)."""
 
 APP_NAME = "Security Alert Center"
-APP_VERSION = "0.5.3"
+APP_VERSION = "0.5.4"
 APP_VERSION_LABEL = f"{APP_NAME} v.{APP_VERSION}"
diff --git a/backend/tests/test_agent_update.py b/backend/tests/test_agent_update.py
index 249ff68..b14e844 100644
--- a/backend/tests/test_agent_update.py
+++ b/backend/tests/test_agent_update.py
@@ -247,6 +247,30 @@ def test_clear_stale_running_remote_actions(db_session):
     assert host.remote_action["ok"] is False
 
 
+def test_get_remote_action_status_ignores_stale_running_payload(db_session):
+    from app.services.host_remote_actions import get_remote_action_status
+
+    host = Host(
+        hostname="done-linux",
+        os_family="linux",
+        product="ssh-monitor",
+        agent_update_state="success",
+        remote_action={
+            "status": "running",
+            "message": "Выполняется обновление… (лог с хоста)",
+            "output": "=== Script update completed successfully ===",
+            "ok": True,
+            "finished_at": "2026-07-08T02:21:11+00:00",
+        },
+    )
+    db_session.add(host)
+    db_session.commit()
+
+    status = get_remote_action_status(host)
+    assert status["active"] is False
+    assert status["agent_update_state"] == "success"
+
+
 def test_cancel_host_remote_job_api(jwt_headers, client, db_session):
     host = Host(
         hostname="cancel-me",