diff --git a/routers/repo/cloudbrain.go b/routers/repo/cloudbrain.go
index a49d4026f..e4b90a6d9 100755
--- a/routers/repo/cloudbrain.go
+++ b/routers/repo/cloudbrain.go
@@ -321,6 +321,11 @@ func CloudBrainShow(ctx *context.Context) {
 
 func CloudBrainDebug(ctx *context.Context) {
 	var jobID = ctx.Params(":jobid")
+	if !ctx.IsSigned {
+		log.Error("the user has not signed in")
+		ctx.Error(http.StatusForbidden, "","the user has not signed in")
+		return
+	}
 	task, err := models.GetCloudbrainByJobID(jobID)
 	if err != nil {
 		ctx.ServerError("GetCloudbrainByJobID failed", err)
@@ -333,6 +338,11 @@ func CloudBrainDebug(ctx *context.Context) {
 
 func CloudBrainCommitImage(ctx *context.Context, form auth.CommitImageCloudBrainForm) {
 	var jobID = ctx.Params(":jobid")
+	if !ctx.IsSigned {
+		log.Error("the user has not signed in")
+		ctx.Error(http.StatusForbidden, "","the user has not signed in")
+		return
+	}
 	task, err := models.GetCloudbrainByJobID(jobID)
 	if err != nil {
 		ctx.JSON(200, map[string]string{
@@ -365,6 +375,11 @@ func CloudBrainCommitImage(ctx *context.Context, form auth.CommitImageCloudBrain
 
 func CloudBrainStop(ctx *context.Context) {
 	var jobID = ctx.Params(":jobid")
+	if !ctx.IsSigned {
+		log.Error("the user has not signed in")
+		ctx.Error(http.StatusForbidden, "","the user has not signed in")
+		return
+	}
 	task, err := models.GetCloudbrainByJobID(jobID)
 	if err != nil {
 		ctx.ServerError("GetCloudbrainByJobID failed", err)