diff --git a/.env.example b/.env.example
index b29f475..3f1cff2 100644
--- a/.env.example
+++ b/.env.example
@@ -23,6 +23,10 @@ REQUIRE_LOGIN=True
 USERNAME=admin
 PASSWORD=<generate-strong-password>
 SECRET_KEY=<generate-with-python3-secrets-token-hex-32>
+# Shared rate-limit store for multi-worker Gunicorn (docker-compose defaults to redis://redis:6379/0).
+# Leave unset so docker-compose selects Redis.
+# For single-process local development (python3 app.py), set this explicitly:
+# RATELIMIT_STORAGE_URI=memory://
 # Public URL the panel itself is reached at (e.g. https://panel.example.com).
 # Used only to auto-detect SESSION_COOKIE_SECURE below when it is unset —
 # leave blank if the panel is plain HTTP or you set SESSION_COOKIE_SECURE explicitly.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0cca629..ee8f3c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,12 @@ only begin at a future `1.0.0`.
 
 ## [Unreleased]
 
+### Security
+- Default Docker Compose stack now includes Redis and uses
+  `RATELIMIT_STORAGE_URI=redis://redis:6379/0` so the `/login` rate limit is
+  shared across Gunicorn workers instead of allowing `5 × worker_count`
+  attempts per minute with in-memory storage
+
 ## [0.1.1] — 2026-07-10
 
 ### Security
diff --git a/README.md b/README.md
index f219d8b..8beb68c 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ Copy `.env.example` to `.env` and adjust:
 | `REQUIRE_LOGIN` | Enable panel login (`True`/`False`, default `True`) | No |
 | `USERNAME` / `PASSWORD` | Panel admin credentials | If login enabled |
 | `SECRET_KEY` | Flask session secret | Yes |
+| `RATELIMIT_STORAGE_URI` | Shared rate-limit store for multi-worker Gunicorn (`redis://…`; docker-compose defaults to Redis) | No |
 
 ## Quick Start (Docker Compose)
 
diff --git a/docker-compose.yml b/docker-compose.yml
index b749b7a..b5a0bc7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,16 @@
 services:
+  redis:
+    image: redis:7-alpine
+    container_name: librtmp2-panel-redis
+    restart: unless-stopped
+    networks:
+      - openrtmp
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 3
+
   openrtmp-panel:
     build: .
     image: ghcr.io/OpenRTMP/librtmp2-server-panel:latest
@@ -15,7 +27,7 @@ services:
       - USERNAME=${USERNAME:-admin}
       - PASSWORD=${PASSWORD:?Set PASSWORD in .env}
       - SECRET_KEY=${SECRET_KEY:?Set SECRET_KEY in .env}
-      - RATELIMIT_STORAGE_URI=${RATELIMIT_STORAGE_URI:-memory://}
+      - RATELIMIT_STORAGE_URI=${RATELIMIT_STORAGE_URI:-redis://redis:6379/0}
       - PANEL_PUBLIC_URL=${PANEL_PUBLIC_URL:-}
       - SESSION_COOKIE_SECURE=${SESSION_COOKIE_SECURE:-}
     ports:
@@ -23,6 +35,8 @@ services:
     networks:
       - openrtmp
     depends_on:
+      redis:
+        condition: service_healthy
       openrtmp-server:
         condition: service_healthy
     healthcheck:
diff --git a/tests/test_login_routes.py b/tests/test_login_routes.py
index bc191bf..d28309c 100644
--- a/tests/test_login_routes.py
+++ b/tests/test_login_routes.py
@@ -53,6 +53,76 @@ def test_cache_control_no_store_on_json_responses(app_client):
     assert r.headers.get("Cache-Control") == "no-store"
 
 
+def _attempt_login_rate_limit_in_subprocess(queue):
+    """Run login attempts in a child process for memory:// rate-limit isolation tests."""
+    with patch("app.Lrtmp2Client"), patch("app.Config.RATELIMIT_STORAGE_URI", "memory://"):
+        import app as app_module
+
+        application = app_module.create_app()
+        application.config["TESTING"] = True
+        application.config["WTF_CSRF_ENABLED"] = False  # NOSONAR - test client posts without CSRF tokens
+        client = application.test_client()
+        accepted = 0
+        for i in range(8):
+            r = client.post(
+                "/login",
+                data={"username": "admin", "password": f"wrong-password-{i}"},
+            )
+            if r.status_code == 200 and b"Invalid credentials" in r.data:
+                accepted += 1
+        queue.put(accepted)
+
+
+def test_login_rate_limit_blocks_after_five_attempts():
+    with patch("app.Lrtmp2Client"), patch("app.Config.RATELIMIT_STORAGE_URI", "memory://"):
+        import app as app_module
+
+        application = app_module.create_app()
+        application.config["TESTING"] = True
+        application.config["WTF_CSRF_ENABLED"] = False  # NOSONAR - test client posts without CSRF tokens
+        client = application.test_client()
+        for i in range(5):
+            r = client.post(
+                "/login",
+                data={"username": "admin", "password": f"wrong-password-{i}"},
+            )
+            assert r.status_code == 200
+            assert b"Invalid credentials" in r.data
+
+        r = client.post(
+            "/login",
+            data={"username": "admin", "password": "wrong-password-final"},
+        )
+        assert r.status_code == 429
+
+
+def test_login_rate_limit_is_per_process_with_memory_storage():
+    """Documents why docker-compose defaults to a shared redis:// limiter backend."""
+    from multiprocessing import Process, Queue
+
+    queue = Queue()
+    workers = [
+        Process(target=_attempt_login_rate_limit_in_subprocess, args=(queue,))
+        for _ in range(3)
+    ]
+    for worker in workers:
+        worker.start()
+    for worker in workers:
+        worker.join(timeout=30)
+
+    alive = [worker for worker in workers if worker.is_alive()]
+    for worker in alive:
+        worker.terminate()
+        worker.join()
+
+    assert not alive, "Login rate-limit workers timed out"
+    assert all(worker.exitcode == 0 for worker in workers)
+
+    accepted_per_worker = [queue.get(timeout=5) for _ in workers]
+    assert accepted_per_worker == [5, 5, 5]
+    assert sum(accepted_per_worker) == 15
+
+
 def test_login_rejects_bad_password():
     with patch("app.Lrtmp2Client"):
         import app as app_module