diff --git a/agent/utils/utils.go b/agent/utils/utils.go
index b8e8d993..8029b2db 100644
--- a/agent/utils/utils.go
+++ b/agent/utils/utils.go
@@ -1,3 +1,4 @@
+// Package utils provides utility functions for the agent.
 package utils
 
 import (
diff --git a/internal/hub/api.go b/internal/hub/api.go
index e8067ebe..d2d009c0 100644
--- a/internal/hub/api.go
+++ b/internal/hub/api.go
@@ -14,6 +14,7 @@ import (
 	"github.com/henrygd/beszel/internal/ghupdate"
 	"github.com/henrygd/beszel/internal/hub/config"
 	"github.com/henrygd/beszel/internal/hub/systems"
+	"github.com/henrygd/beszel/internal/hub/utils"
 	"github.com/pocketbase/dbx"
 	"github.com/pocketbase/pocketbase/apis"
 	"github.com/pocketbase/pocketbase/core"
@@ -70,13 +71,13 @@ func (h *Hub) registerMiddlewares(se *core.ServeEvent) {
 		return e.Next()
 	}
 	// authenticate with trusted header
-	if autoLogin, _ := GetEnv("AUTO_LOGIN"); autoLogin != "" {
+	if autoLogin, _ := utils.GetEnv("AUTO_LOGIN"); autoLogin != "" {
 		se.Router.BindFunc(func(e *core.RequestEvent) error {
 			return authorizeRequestWithEmail(e, autoLogin)
 		})
 	}
 	// authenticate with trusted header
-	if trustedHeader, _ := GetEnv("TRUSTED_AUTH_HEADER"); trustedHeader != "" {
+	if trustedHeader, _ := utils.GetEnv("TRUSTED_AUTH_HEADER"); trustedHeader != "" {
 		se.Router.BindFunc(func(e *core.RequestEvent) error {
 			return authorizeRequestWithEmail(e, e.Request.Header.Get(trustedHeader))
 		})
@@ -104,7 +105,7 @@ func (h *Hub) registerApiRoutes(se *core.ServeEvent) error {
 	apiAuth.GET("/info", h.getInfo)
 	apiAuth.GET("/getkey", h.getInfo) // deprecated - keep for compatibility w/ integrations
 	// check for updates
-	if optIn, _ := GetEnv("CHECK_UPDATES"); optIn == "true" {
+	if optIn, _ := utils.GetEnv("CHECK_UPDATES"); optIn == "true" {
 		var updateInfo UpdateInfo
 		apiAuth.GET("/update", updateInfo.getUpdate)
 	}
@@ -127,7 +128,7 @@ func (h *Hub) registerApiRoutes(se *core.ServeEvent) error {
 	// get systemd service details
 	apiAuth.GET("/systemd/info", h.getSystemdInfo)
 	// /containers routes
-	if enabled, _ := GetEnv("CONTAINER_DETAILS"); enabled != "false" {
+	if enabled, _ := utils.GetEnv("CONTAINER_DETAILS"); enabled != "false" {
 		// get container logs
 		apiAuth.GET("/containers/logs", h.getContainerLogs)
 		// get container info
@@ -147,7 +148,7 @@ func (h *Hub) getInfo(e *core.RequestEvent) error {
 		Key:     h.pubKey,
 		Version: beszel.Version,
 	}
-	if optIn, _ := GetEnv("CHECK_UPDATES"); optIn == "true" {
+	if optIn, _ := utils.GetEnv("CHECK_UPDATES"); optIn == "true" {
 		info.CheckUpdate = true
 	}
 	return e.JSON(http.StatusOK, info)
@@ -315,7 +316,7 @@ func (h *Hub) containerRequestHandler(e *core.RequestEvent, fetchFunc func(*syst
 	}
 
 	system, err := h.sm.GetSystem(systemID)
-	if err != nil || !system.HasUser(e.App, e.Auth.Id) {
+	if err != nil || !system.HasUser(e.App, e.Auth) {
 		return e.NotFoundError("", nil)
 	}
 
@@ -350,7 +351,7 @@ func (h *Hub) getSystemdInfo(e *core.RequestEvent) error {
 		return e.BadRequestError("Invalid system or service parameter", nil)
 	}
 	system, err := h.sm.GetSystem(systemID)
-	if err != nil || !system.HasUser(e.App, e.Auth.Id) {
+	if err != nil || !system.HasUser(e.App, e.Auth) {
 		return e.NotFoundError("", nil)
 	}
 	// verify service exists before fetching details
@@ -378,7 +379,7 @@ func (h *Hub) refreshSmartData(e *core.RequestEvent) error {
 	}
 
 	system, err := h.sm.GetSystem(systemID)
-	if err != nil || !system.HasUser(e.App, e.Auth.Id) {
+	if err != nil || !system.HasUser(e.App, e.Auth) {
 		return e.NotFoundError("", nil)
 	}
 
diff --git a/internal/hub/api_test.go b/internal/hub/api_test.go
index 7981dfd6..15bb7445 100644
--- a/internal/hub/api_test.go
+++ b/internal/hub/api_test.go
@@ -344,6 +344,23 @@ func TestApiRoutesAuthentication(t *testing.T) {
 				"Authorization": user2Token,
 			},
 		},
+		{
+			Name:            "GET /containers/info - SHARE_ALL_SYSTEMS allows non-member user",
+			Method:          http.MethodGet,
+			URL:             fmt.Sprintf("/api/beszel/containers/info?system=%s&container=abababababab", system.Id),
+			ExpectedStatus:  500,
+			ExpectedContent: []string{"Something went wrong while processing your request."},
+			TestAppFactory:  testAppFactory,
+			Headers: map[string]string{
+				"Authorization": user2Token,
+			},
+			BeforeTestFunc: func(t testing.TB, app *pbTests.TestApp, e *core.ServeEvent) {
+				t.Setenv("SHARE_ALL_SYSTEMS", "true")
+			},
+			AfterTestFunc: func(t testing.TB, app *pbTests.TestApp, res *http.Response) {
+				t.Setenv("SHARE_ALL_SYSTEMS", "")
+			},
+		},
 		{
 			Name:   "GET /containers/logs - with auth but missing system param should fail",
 			Method: http.MethodGet,
diff --git a/internal/hub/collections.go b/internal/hub/collections.go
index d8013b17..5b939a44 100644
--- a/internal/hub/collections.go
+++ b/internal/hub/collections.go
@@ -1,6 +1,9 @@
 package hub
 
-import "github.com/pocketbase/pocketbase/core"
+import (
+	"github.com/henrygd/beszel/internal/hub/utils"
+	"github.com/pocketbase/pocketbase/core"
+)
 
 type collectionRules struct {
 	list   *string
@@ -22,11 +25,11 @@ func setCollectionAuthSettings(app core.App) error {
 	}
 
 	// disable email auth if DISABLE_PASSWORD_AUTH env var is set
-	disablePasswordAuth, _ := GetEnv("DISABLE_PASSWORD_AUTH")
+	disablePasswordAuth, _ := utils.GetEnv("DISABLE_PASSWORD_AUTH")
 	usersCollection.PasswordAuth.Enabled = disablePasswordAuth != "true"
 	usersCollection.PasswordAuth.IdentityFields = []string{"email"}
 	// allow oauth user creation if USER_CREATION is set
-	if userCreation, _ := GetEnv("USER_CREATION"); userCreation == "true" {
+	if userCreation, _ := utils.GetEnv("USER_CREATION"); userCreation == "true" {
 		cr := "@request.context = 'oauth2'"
 		usersCollection.CreateRule = &cr
 	} else {
@@ -34,7 +37,7 @@ func setCollectionAuthSettings(app core.App) error {
 	}
 
 	// enable mfaOtp mfa if MFA_OTP env var is set
-	mfaOtp, _ := GetEnv("MFA_OTP")
+	mfaOtp, _ := utils.GetEnv("MFA_OTP")
 	usersCollection.OTP.Length = 6
 	superusersCollection.OTP.Length = 6
 	usersCollection.OTP.Enabled = mfaOtp == "true"
@@ -50,7 +53,7 @@ func setCollectionAuthSettings(app core.App) error {
 
 	// When SHARE_ALL_SYSTEMS is enabled, any authenticated user can read
 	// system-scoped data. Write rules continue to block readonly users.
-	shareAllSystems, _ := GetEnv("SHARE_ALL_SYSTEMS")
+	shareAllSystems, _ := utils.GetEnv("SHARE_ALL_SYSTEMS")
 
 	authenticatedRule := "@request.auth.id != \"\""
 	systemsMemberRule := authenticatedRule + " && users.id ?= @request.auth.id"
diff --git a/internal/hub/hub.go b/internal/hub/hub.go
index badca8c4..13cd7e6a 100644
--- a/internal/hub/hub.go
+++ b/internal/hub/hub.go
@@ -15,6 +15,7 @@ import (
 	"github.com/henrygd/beszel/internal/hub/config"
 	"github.com/henrygd/beszel/internal/hub/heartbeat"
 	"github.com/henrygd/beszel/internal/hub/systems"
+	"github.com/henrygd/beszel/internal/hub/utils"
 	"github.com/henrygd/beszel/internal/records"
 	"github.com/henrygd/beszel/internal/users"
 
@@ -44,7 +45,7 @@ func NewHub(app core.App) *Hub {
 	hub.um = users.NewUserManager(hub)
 	hub.rm = records.NewRecordManager(hub)
 	hub.sm = systems.NewSystemManager(hub)
-	hub.hb = heartbeat.New(app, GetEnv)
+	hub.hb = heartbeat.New(app, utils.GetEnv)
 	if hub.hb != nil {
 		hub.hbStop = make(chan struct{})
 	}
@@ -52,15 +53,6 @@ func NewHub(app core.App) *Hub {
 	return hub
 }
 
-// GetEnv retrieves an environment variable with a "BESZEL_HUB_" prefix, or falls back to the unprefixed key.
-func GetEnv(key string) (value string, exists bool) {
-	if value, exists = os.LookupEnv("BESZEL_HUB_" + key); exists {
-		return value, exists
-	}
-	// Fallback to the old unprefixed key
-	return os.LookupEnv(key)
-}
-
 // onAfterBootstrapAndMigrations ensures the provided function runs after the database is set up and migrations are applied.
 // This is a workaround for behavior in PocketBase where onBootstrap runs before migrations, forcing use of onServe for this purpose.
 // However, PB's tests.TestApp is already bootstrapped, generally doesn't serve, but does handle migrations.
@@ -131,7 +123,7 @@ func (h *Hub) initialize(app core.App) error {
 	// batch requests (for alerts)
 	settings.Batch.Enabled = true
 	// set URL if APP_URL env is set
-	if appURL, isSet := GetEnv("APP_URL"); isSet {
+	if appURL, isSet := utils.GetEnv("APP_URL"); isSet {
 		h.appURL = appURL
 		settings.Meta.AppURL = appURL
 	}
diff --git a/internal/hub/server_production.go b/internal/hub/server_production.go
index 59ca52a1..d2a5b464 100644
--- a/internal/hub/server_production.go
+++ b/internal/hub/server_production.go
@@ -9,6 +9,7 @@ import (
 	"strings"
 
 	"github.com/henrygd/beszel"
+	"github.com/henrygd/beszel/internal/hub/utils"
 	"github.com/henrygd/beszel/internal/site"
 
 	"github.com/pocketbase/pocketbase/apis"
@@ -32,7 +33,7 @@ func (h *Hub) startServer(se *core.ServeEvent) error {
 	staticPaths := [2]string{"/static/", "/assets/"}
 	serveStatic := apis.Static(site.DistDirFS, false)
 	// get CSP configuration
-	csp, cspExists := GetEnv("CSP")
+	csp, cspExists := utils.GetEnv("CSP")
 	// add route
 	se.Router.GET("/{path...}", func(e *core.RequestEvent) error {
 		// serve static assets if path is in staticPaths
diff --git a/internal/hub/systems/system.go b/internal/hub/systems/system.go
index 28f357a3..947ef257 100644
--- a/internal/hub/systems/system.go
+++ b/internal/hub/systems/system.go
@@ -15,6 +15,7 @@ import (
 
 	"github.com/henrygd/beszel/internal/common"
 	"github.com/henrygd/beszel/internal/hub/transport"
+	"github.com/henrygd/beszel/internal/hub/utils"
 	"github.com/henrygd/beszel/internal/hub/ws"
 
 	"github.com/henrygd/beszel/internal/entities/container"
@@ -353,14 +354,21 @@ func (sys *System) getRecord(app core.App) (*core.Record, error) {
 	return record, nil
 }
 
-// HasUser checks if the given user ID is in the system's users list.
-func (sys *System) HasUser(app core.App, userID string) bool {
+// HasUser checks if the given user is in the system's users list.
+// Returns true if SHARE_ALL_SYSTEMS is enabled (any authenticated user can access any system).
+func (sys *System) HasUser(app core.App, user *core.Record) bool {
+	if user == nil {
+		return false
+	}
+	if v, _ := utils.GetEnv("SHARE_ALL_SYSTEMS"); v == "true" {
+		return true
+	}
 	record, err := sys.getRecord(app)
 	if err != nil {
 		return false
 	}
 	users := record.GetStringSlice("users")
-	return slices.Contains(users, userID)
+	return slices.Contains(users, user.Id)
 }
 
 // setDown marks a system as down in the database.
diff --git a/internal/hub/systems/systems_test.go b/internal/hub/systems/systems_test.go
index b734edda..1ddb817f 100644
--- a/internal/hub/systems/systems_test.go
+++ b/internal/hub/systems/systems_test.go
@@ -421,3 +421,51 @@ func testOld(t *testing.T, hub *tests.TestHub) {
 		assert.NoError(t, err)
 	})
 }
+
+func TestHasUser(t *testing.T) {
+	hub, err := tests.NewTestHub(t.TempDir())
+	require.NoError(t, err)
+	defer hub.Cleanup()
+
+	sm := hub.GetSystemManager()
+	err = sm.Initialize()
+	require.NoError(t, err)
+
+	user1, err := tests.CreateUser(hub, "user1@test.com", "password123")
+	require.NoError(t, err)
+	user2, err := tests.CreateUser(hub, "user2@test.com", "password123")
+	require.NoError(t, err)
+
+	record, err := tests.CreateRecord(hub, "systems", map[string]any{
+		"name":  "has-user-test",
+		"host":  "127.0.0.1",
+		"port":  "33914",
+		"users": []string{user1.Id},
+	})
+	require.NoError(t, err)
+
+	sys, err := sm.GetSystemFromStore(record.Id)
+	require.NoError(t, err)
+
+	t.Run("user in list returns true", func(t *testing.T) {
+		assert.True(t, sys.HasUser(hub, user1))
+	})
+
+	t.Run("user not in list returns false", func(t *testing.T) {
+		assert.False(t, sys.HasUser(hub, user2))
+	})
+
+	t.Run("unknown user ID returns false", func(t *testing.T) {
+		assert.False(t, sys.HasUser(hub, nil))
+	})
+
+	t.Run("SHARE_ALL_SYSTEMS=true grants access to non-member", func(t *testing.T) {
+		t.Setenv("SHARE_ALL_SYSTEMS", "true")
+		assert.True(t, sys.HasUser(hub, user2))
+	})
+
+	t.Run("BESZEL_HUB_SHARE_ALL_SYSTEMS=true grants access to non-member", func(t *testing.T) {
+		t.Setenv("BESZEL_HUB_SHARE_ALL_SYSTEMS", "true")
+		assert.True(t, sys.HasUser(hub, user2))
+	})
+}
diff --git a/internal/hub/utils/utils.go b/internal/hub/utils/utils.go
new file mode 100644
index 00000000..43838868
--- /dev/null
+++ b/internal/hub/utils/utils.go
@@ -0,0 +1,12 @@
+// Package utils provides utility functions for the hub.
+package utils
+
+import "os"
+
+// GetEnv retrieves an environment variable with a "BESZEL_HUB_" prefix, or falls back to the unprefixed key.
+func GetEnv(key string) (value string, exists bool) {
+	if value, exists = os.LookupEnv("BESZEL_HUB_" + key); exists {
+		return value, exists
+	}
+	return os.LookupEnv(key)
+}