security: (MED) GHSA-fwhj-785h-43hh Crash on NPE by calling APIs with invalid bindings or log references

service/internal/api/api.go

@@ -70,20 +70,21 @@ func (api *oliveTinAPI) KillAction(ctx ctx.Context, req *connect.Request[apiv1.K
 	execReqLogEntry, ret.Found = api.executor.GetLog(req.Msg.ExecutionTrackingId)
 
 	if !ret.Found {
-		log.Warnf("Killing execution request not possible - not found by tracking ID: %v", req.Msg.ExecutionTrackingId)
-		return connect.NewResponse(ret), nil
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("execution not found for tracking ID %s", req.Msg.ExecutionTrackingId))
 	}
 
-	log.Warnf("Killing execution request by tracking ID: %v", req.Msg.ExecutionTrackingId)
+	if execReqLogEntry.Binding == nil {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("log entry has no binding for tracking ID %s", req.Msg.ExecutionTrackingId))
+	}
 
 	action := execReqLogEntry.Binding.Action
 
 	if action == nil {
-		log.Warnf("Killing execution request not possible - action not found: %v", execReqLogEntry.ActionTitle)
-		ret.Killed = false
-		return connect.NewResponse(ret), nil
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action not found for tracking ID %s", req.Msg.ExecutionTrackingId))
 	}
 
+	log.Warnf("Killing execution request by tracking ID: %v", req.Msg.ExecutionTrackingId)
+
 	user := auth.UserFromApiCall(ctx, req, api.cfg)
 
 	api.killActionByTrackingId(user, action, execReqLogEntry, ret)
@@ -205,42 +206,58 @@ func (api *oliveTinAPI) LocalUserLogin(ctx ctx.Context, req *connect.Request[api
 	return response, nil
 }
 
-func (api *oliveTinAPI) StartActionAndWait(ctx ctx.Context, req *connect.Request[apiv1.StartActionAndWaitRequest]) (*connect.Response[apiv1.StartActionAndWaitResponse], error) {
-	args := make(map[string]string)
-
-	for _, arg := range req.Msg.Arguments {
-		args[arg.Name] = arg.Value
-	}
-
-	user := auth.UserFromApiCall(ctx, req, api.cfg)
-
+func (api *oliveTinAPI) startActionAndWaitRun(binding *executor.ActionBinding, args map[string]string, user *authpublic.AuthenticatedUser) (*executor.InternalLogEntry, bool) {
 	execReq := executor.ExecutionRequest{
-		Binding:           api.executor.FindBindingByID(req.Msg.ActionId),
+		Binding:           binding,
 		TrackingID:        uuid.NewString(),
 		Arguments:         args,
 		AuthenticatedUser: user,
 		Cfg:               api.cfg,
 	}
-
 	wg, _ := api.executor.ExecRequest(&execReq)
 	wg.Wait()
+	return api.executor.GetLog(execReq.TrackingID)
+}
 
-	internalLogEntry, ok := api.executor.GetLog(execReq.TrackingID)
+func (api *oliveTinAPI) findBindingOrNotFound(actionId string) (*executor.ActionBinding, error) {
+	binding := api.executor.FindBindingByID(actionId)
+	if binding == nil || binding.Action == nil {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action with ID %s not found", actionId))
+	}
+	return binding, nil
+}
 
-	if ok {
-		return connect.NewResponse(&apiv1.StartActionAndWaitResponse{
-			LogEntry: api.internalLogEntryToPb(internalLogEntry, user),
-		}), nil
-	} else {
-		return nil, fmt.Errorf("execution not found")
+func (api *oliveTinAPI) StartActionAndWait(ctx ctx.Context, req *connect.Request[apiv1.StartActionAndWaitRequest]) (*connect.Response[apiv1.StartActionAndWaitResponse], error) {
+	binding, err := api.findBindingOrNotFound(req.Msg.ActionId)
+	if err != nil {
+		return nil, err
+	}
+
+	args := make(map[string]string)
+	for _, arg := range req.Msg.Arguments {
+		args[arg.Name] = arg.Value
 	}
+	user := auth.UserFromApiCall(ctx, req, api.cfg)
+
+	internalLogEntry, ok := api.startActionAndWaitRun(binding, args, user)
+	if !ok {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("execution not found"))
+	}
+	return connect.NewResponse(&apiv1.StartActionAndWaitResponse{
+		LogEntry: api.internalLogEntryToPb(internalLogEntry, user),
+	}), nil
 }
 
 func (api *oliveTinAPI) StartActionByGet(ctx ctx.Context, req *connect.Request[apiv1.StartActionByGetRequest]) (*connect.Response[apiv1.StartActionByGetResponse], error) {
+	binding := api.executor.FindBindingByID(req.Msg.ActionId)
+	if binding == nil || binding.Action == nil {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action with ID %s not found", req.Msg.ActionId))
+	}
+
 	args := make(map[string]string)
 
 	execReq := executor.ExecutionRequest{
-		Binding:           api.executor.FindBindingByID(req.Msg.ActionId),
+		Binding:           binding,
 		TrackingID:        uuid.NewString(),
 		Arguments:         args,
 		AuthenticatedUser: auth.UserFromApiCall(ctx, req, api.cfg),
@@ -255,12 +272,17 @@ func (api *oliveTinAPI) StartActionByGet(ctx ctx.Context, req *connect.Request[a
 }
 
 func (api *oliveTinAPI) StartActionByGetAndWait(ctx ctx.Context, req *connect.Request[apiv1.StartActionByGetAndWaitRequest]) (*connect.Response[apiv1.StartActionByGetAndWaitResponse], error) {
+	binding := api.executor.FindBindingByID(req.Msg.ActionId)
+	if binding == nil || binding.Action == nil {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action with ID %s not found", req.Msg.ActionId))
+	}
+
 	args := make(map[string]string)
 
 	user := auth.UserFromApiCall(ctx, req, api.cfg)
 
 	execReq := executor.ExecutionRequest{
-		Binding:           api.executor.FindBindingByID(req.Msg.ActionId),
+		Binding:           binding,
 		TrackingID:        uuid.NewString(),
 		Arguments:         args,
 		AuthenticatedUser: user,
@@ -276,9 +298,8 @@ func (api *oliveTinAPI) StartActionByGetAndWait(ctx ctx.Context, req *connect.Re
 		return connect.NewResponse(&apiv1.StartActionByGetAndWaitResponse{
 			LogEntry: api.internalLogEntryToPb(internalLogEntry, user),
 		}), nil
-	} else {
-		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("execution not found"))
 	}
+	return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("execution not found"))
 }
 
 func calculateRateLimitExpires(api *oliveTinAPI, logEntry *executor.InternalLogEntry) string {
@@ -436,7 +457,7 @@ func (api *oliveTinAPI) GetActionBinding(ctx ctx.Context, req *connect.Request[a
 
 	binding := api.executor.FindBindingByID(req.Msg.BindingId)
 
-	if binding == nil {
+	if binding == nil || binding.Action == nil {
 		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action with ID %s not found", req.Msg.BindingId))
 	}
 
@@ -646,7 +667,16 @@ error messages more quickly before starting the action.
 It uses the same validation logic as the executor, including mangling argument
 values (e.g., datetime formatting, checkbox title-to-value conversion).
 */
+func (api *oliveTinAPI) argumentNotFoundForValidation(msg *apiv1.ValidateArgumentTypeRequest) bool {
+	arg, _ := api.findArgumentForValidation(msg.BindingId, msg.ArgumentName)
+	return arg == nil && (msg.BindingId != "" || msg.ArgumentName != "")
+}
+
 func (api *oliveTinAPI) ValidateArgumentType(ctx ctx.Context, req *connect.Request[apiv1.ValidateArgumentTypeRequest]) (*connect.Response[apiv1.ValidateArgumentTypeResponse], error) {
+	if api.argumentNotFoundForValidation(req.Msg) {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action or argument not found for binding ID %s", req.Msg.BindingId))
+	}
+
 	err := api.validateArgumentTypeInternal(req.Msg)
 	desc := ""
 	if err != nil {
@@ -747,6 +777,13 @@ func (api *oliveTinAPI) DumpVars(ctx ctx.Context, req *connect.Request[apiv1.Dum
 	return connect.NewResponse(res), nil
 }
 
+func debugBindingActionTitle(binding *executor.ActionBinding) string {
+	if binding == nil || binding.Action == nil {
+		return ""
+	}
+	return binding.Action.Title
+}
+
 func (api *oliveTinAPI) DumpPublicIdActionMap(ctx ctx.Context, req *connect.Request[apiv1.DumpPublicIdActionMapRequest]) (*connect.Response[apiv1.DumpPublicIdActionMapResponse], error) {
 	res := &apiv1.DumpPublicIdActionMapResponse{}
 	res.Contents = make(map[string]*apiv1.DebugBinding)
@@ -761,7 +798,7 @@ func (api *oliveTinAPI) DumpPublicIdActionMap(ctx ctx.Context, req *connect.Requ
 
 	for k, v := range api.executor.MapActionBindings {
 		res.Contents[k] = &apiv1.DebugBinding{
-			ActionTitle: v.Action.Title,
+			ActionTitle: debugBindingActionTitle(v),
 		}
 	}
 
@@ -1267,28 +1304,26 @@ func serializeEntityFields(data any) map[string]string {
 }
 
 func (api *oliveTinAPI) RestartAction(ctx ctx.Context, req *connect.Request[apiv1.RestartActionRequest]) (*connect.Response[apiv1.StartActionResponse], error) {
-	ret := &apiv1.StartActionResponse{
-		ExecutionTrackingId: req.Msg.ExecutionTrackingId,
-	}
-
 	var execReqLogEntry *executor.InternalLogEntry
 
 	execReqLogEntry, found := api.executor.GetLog(req.Msg.ExecutionTrackingId)
 
 	if !found {
-		log.Warnf("Restarting execution request not possible - not found by tracking ID: %v", req.Msg.ExecutionTrackingId)
-		return connect.NewResponse(ret), nil
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("execution not found for tracking ID %s", req.Msg.ExecutionTrackingId))
 	}
 
-	log.Warnf("Restarting execution request by tracking ID: %v", req.Msg.ExecutionTrackingId)
+	if execReqLogEntry.Binding == nil {
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("log entry has no binding for tracking ID %s", req.Msg.ExecutionTrackingId))
+	}
 
 	action := execReqLogEntry.Binding.Action
 
 	if action == nil {
-		log.Warnf("Restarting execution request not possible - action not found: %v", execReqLogEntry.ActionTitle)
-		return connect.NewResponse(ret), nil
+		return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf("action not found for tracking ID %s", req.Msg.ExecutionTrackingId))
 	}
 
+	log.Warnf("Restarting execution request by tracking ID: %v", req.Msg.ExecutionTrackingId)
+
 	return api.StartAction(ctx, &connect.Request[apiv1.StartActionRequest]{
 		Msg: &apiv1.StartActionRequest{
 			BindingId:        execReqLogEntry.GetBindingId(),

service/internal/api/apiActions.go

@@ -28,18 +28,19 @@ func (rr *DashboardRenderRequest) findAction(title string) *apiv1.Action {
 	return rr.findActionForEntity(title, nil)
 }
 
+func bindingMatchesTitleAndEntity(binding *executor.ActionBinding, title string, entity *entities.Entity) bool {
+	return binding != nil && binding.Action != nil && binding.Action.Title == title && matchesEntity(binding, entity)
+}
+
 func (rr *DashboardRenderRequest) findActionForEntity(title string, entity *entities.Entity) *apiv1.Action {
 	rr.ex.MapActionBindingsLock.RLock()
 	defer rr.ex.MapActionBindingsLock.RUnlock()
 
 	for _, binding := range rr.ex.MapActionBindings {
-		if binding.Action.Title != title {
+		if !bindingMatchesTitleAndEntity(binding, title, entity) {
 			continue
 		}
-
-		if matchesEntity(binding, entity) {
-			return buildAction(binding, rr)
-		}
+		return buildAction(binding, rr)
 	}
 
 	return nil
@@ -117,26 +118,37 @@ func getDefaultArgumentValue(cfgArg config.ActionArgument, entity *entities.Enti
 	return defaultValue
 }
 
-func buildAction(actionBinding *executor.ActionBinding, rr *DashboardRenderRequest) *apiv1.Action {
-	action := actionBinding.Action
+func formatRateLimitExpiry(expiryUnix int64) string {
+	if expiryUnix <= 0 {
+		return ""
+	}
+	return time.Unix(expiryUnix, 0).Format("2006-01-02 15:04:05")
+}
 
-	aclCanExec := acl.IsAllowedExec(rr.cfg, rr.AuthenticatedUser, action)
-	enabledExprCanExec := evaluateEnabledExpression(action, actionBinding.Entity)
+func actionFromBinding(actionBinding *executor.ActionBinding) (*executor.ActionBinding, *config.Action) {
+	if actionBinding == nil || actionBinding.Action == nil {
+		return nil, nil
+	}
+	return actionBinding, actionBinding.Action
+}
 
-	// Calculate rate limit expiry time
-	expiryUnix := rr.ex.GetTimeUntilAvailable(actionBinding)
-	datetimeRateLimitExpires := ""
-	if expiryUnix > 0 {
-		datetimeRateLimitExpires = time.Unix(expiryUnix, 0).Format("2006-01-02 15:04:05")
+func buildAction(actionBinding *executor.ActionBinding, rr *DashboardRenderRequest) *apiv1.Action {
+	binding, action := actionFromBinding(actionBinding)
+	if binding == nil {
+		return nil
 	}
 
+	aclCanExec := acl.IsAllowedExec(rr.cfg, rr.AuthenticatedUser, action)
+	enabledExprCanExec := evaluateEnabledExpression(action, binding.Entity)
+	datetimeRateLimitExpires := formatRateLimitExpiry(rr.ex.GetTimeUntilAvailable(binding))
+
 	btn := apiv1.Action{
-		BindingId:                actionBinding.ID,
-		Title:                    tpl.ParseTemplateOfActionBeforeExec(action.Title, actionBinding.Entity),
-		Icon:                     tpl.ParseTemplateOfActionBeforeExec(action.Icon, actionBinding.Entity),
+		BindingId:                binding.ID,
+		Title:                    tpl.ParseTemplateOfActionBeforeExec(action.Title, binding.Entity),
+		Icon:                     tpl.ParseTemplateOfActionBeforeExec(action.Icon, binding.Entity),
 		CanExec:                  aclCanExec && enabledExprCanExec,
 		PopupOnStart:             action.PopupOnStart,
-		Order:                    int32(actionBinding.ConfigOrder),
+		Order:                    int32(binding.ConfigOrder),
 		Timeout:                  int32(action.Timeout),
 		DatetimeRateLimitExpires: datetimeRateLimitExpires,
 	}
@@ -147,7 +159,7 @@ func buildAction(actionBinding *executor.ActionBinding, rr *DashboardRenderReque
 			Title:                 cfgArg.Title,
 			Type:                  cfgArg.Type,
 			Description:           cfgArg.Description,
-			DefaultValue:          getDefaultArgumentValue(cfgArg, actionBinding.Entity),
+			DefaultValue:          getDefaultArgumentValue(cfgArg, binding.Entity),
 			Choices:               buildChoices(cfgArg),
 			Suggestions:           cfgArg.Suggestions,
 			SuggestionsBrowserKey: cfgArg.SuggestionsBrowserKey,

service/internal/api/dashboards.go

@@ -130,7 +130,7 @@ func buildDefaultDashboard(rr *DashboardRenderRequest) *apiv1.Dashboard {
 	}
 
 	for _, binding := range rr.ex.MapActionBindings {
-		if binding.Action.Hidden {
+		if binding == nil || binding.Action == nil || binding.Action.Hidden {
 			continue
 		}
 
@@ -139,6 +139,9 @@ func buildDefaultDashboard(rr *DashboardRenderRequest) *apiv1.Dashboard {
 		}
 
 		action := buildAction(binding, rr)
+		if action == nil {
+			continue
+		}
 
 		fieldset.Contents = append(fieldset.Contents, &apiv1.DashboardComponent{
 			Type:   "link",