diff --git a/pkg/api/org_test.go b/pkg/api/org_test.go
index 777c82b4031..48ec23aab37 100644
--- a/pkg/api/org_test.go
+++ b/pkg/api/org_test.go
@@ -249,11 +249,11 @@ func TestAPIEndpoint_GetOrg(t *testing.T) {
 			server := SetupAPITestServer(t, func(hs *HTTPServer) {
 				hs.Cfg = setting.NewCfg()
 				hs.orgService = &orgtest.FakeOrgService{ExpectedOrg: &org.Org{}}
-				hs.userService = &usertest.FakeUserService{ExpectedSignedInUser: &user.SignedInUser{OrgID: 0}}
+				hs.userService = &usertest.FakeUserService{ExpectedSignedInUser: &user.SignedInUser{OrgID: 1}}
 				hs.accesscontrolService = &actest.FakeService{ExpectedPermissions: tt.permissions}
 			})
 			verify := func(path string) {
-				req := webtest.RequestWithSignedInUser(server.NewGetRequest(path), userWithPermissions(2, tt.permissions))
+				req := webtest.RequestWithSignedInUser(server.NewGetRequest(path), authedUserWithPermissions(1, 1, tt.permissions))
 				res, err := server.Send(req)
 				require.NoError(t, err)
 				assert.Equal(t, tt.expectedCode, res.StatusCode)
diff --git a/pkg/services/accesscontrol/authorize_in_org_test.go b/pkg/services/accesscontrol/authorize_in_org_test.go
index 4893e8b88ee..0af24186f16 100644
--- a/pkg/services/accesscontrol/authorize_in_org_test.go
+++ b/pkg/services/accesscontrol/authorize_in_org_test.go
@@ -35,16 +35,18 @@ func TestAuthorizeInOrgMiddleware(t *testing.T) {
 		expectedStatus  int
 	}{
 		{
-			name: "should authorize user with global org ID - no fetch",
+			name: "should authorize user with global org ID - fetch",
 			orgIDGetter: func(c *contextmodel.ReqContext) (int64, error) {
 				return accesscontrol.GlobalOrgID, nil
 			},
 			evaluator:       accesscontrol.EvalPermission("users:read", "users:*"),
 			accessControl:   ac,
-			acService:       &actest.FakeService{},
 			userCache:       &usertest.FakeUserService{},
 			ctxSignedInUser: &user.SignedInUser{UserID: 1, OrgID: 1, Permissions: map[int64]map[string][]string{1: {"users:read": {"users:*"}}}},
-			expectedStatus:  http.StatusOK,
+			acService: &actest.FakeService{
+				ExpectedPermissions: []accesscontrol.Permission{{Action: "users:read", Scope: "users:*"}},
+			},
+			expectedStatus: http.StatusOK,
 		},
 		{
 			name: "should authorize user with non-global org ID - no fetch",
@@ -70,6 +72,30 @@ func TestAuthorizeInOrgMiddleware(t *testing.T) {
 			acService:       &actest.FakeService{},
 			expectedStatus:  http.StatusForbidden,
 		},
+		{
+			name: "should return 200 when user has permissions for a global org",
+			orgIDGetter: func(c *contextmodel.ReqContext) (int64, error) {
+				return accesscontrol.GlobalOrgID, nil
+			},
+			evaluator:       accesscontrol.EvalPermission("users:read", "users:*"),
+			accessControl:   ac,
+			userCache:       &usertest.FakeUserService{},
+			ctxSignedInUser: &user.SignedInUser{UserID: 1, OrgID: 1, Permissions: map[int64]map[string][]string{accesscontrol.GlobalOrgID: {"users:read": {"users:*"}}}},
+			acService:       &actest.FakeService{},
+			expectedStatus:  http.StatusOK,
+		},
+		{
+			name: "should return 403 when user has no permissions for a global org",
+			orgIDGetter: func(c *contextmodel.ReqContext) (int64, error) {
+				return accesscontrol.GlobalOrgID, nil
+			},
+			evaluator:       accesscontrol.EvalPermission("users:read", "users:*"),
+			accessControl:   ac,
+			userCache:       &usertest.FakeUserService{},
+			ctxSignedInUser: &user.SignedInUser{UserID: 1, OrgID: 1, Permissions: map[int64]map[string][]string{1: {"users:read": {"users:*"}}}},
+			acService:       &actest.FakeService{},
+			expectedStatus:  http.StatusForbidden,
+		},
 		{
 			name: "should return 403 when user org ID doesn't match and user does not exist in org 2",
 			orgIDGetter: func(c *contextmodel.ReqContext) (int64, error) {
diff --git a/pkg/services/accesscontrol/middleware.go b/pkg/services/accesscontrol/middleware.go
index 2de72567181..9902f0146ea 100644
--- a/pkg/services/accesscontrol/middleware.go
+++ b/pkg/services/accesscontrol/middleware.go
@@ -190,19 +190,26 @@ func AuthorizeInOrgMiddleware(ac AccessControl, service Service, cache userCache
 				return
 			}
 
-			if targetOrgID != GlobalOrgID && userCopy.Permissions[targetOrgID] == nil {
-				query := user.GetSignedInUserQuery{UserID: c.UserID, OrgID: targetOrgID}
-				queryResult, err := cache.GetSignedInUserWithCacheCtx(c.Req.Context(), &query)
-				if err != nil {
-					deny(c, nil, fmt.Errorf("failed to authenticate user in target org: %w", err))
-					return
+			if userCopy.OrgID != targetOrgID {
+				switch targetOrgID {
+				case GlobalOrgID:
+					userCopy.OrgID = GlobalOrgID
+					userCopy.OrgRole = org.RoleNone
+					userCopy.OrgName = ""
+				default:
+					query := user.GetSignedInUserQuery{UserID: c.UserID, OrgID: targetOrgID}
+					queryResult, err := cache.GetSignedInUserWithCacheCtx(c.Req.Context(), &query)
+					if err != nil {
+						deny(c, nil, fmt.Errorf("failed to authenticate user in target org: %w", err))
+						return
+					}
+					userCopy.OrgID = queryResult.OrgID
+					userCopy.OrgName = queryResult.OrgName
+					userCopy.OrgRole = queryResult.OrgRole
 				}
-				userCopy.OrgID = queryResult.OrgID
-				userCopy.OrgName = queryResult.OrgName
-				userCopy.OrgRole = queryResult.OrgRole
 			}
 
-			if userCopy.Permissions[userCopy.OrgID] == nil {
+			if userCopy.Permissions[targetOrgID] == nil {
 				permissions, err := service.GetUserPermissions(c.Req.Context(), &userCopy, Options{})
 				if err != nil {
 					deny(c, nil, fmt.Errorf("failed to authenticate user in target org: %w", err))
@@ -212,7 +219,7 @@ func AuthorizeInOrgMiddleware(ac AccessControl, service Service, cache userCache
 				if userCopy.Permissions == nil {
 					userCopy.Permissions = make(map[int64]map[string][]string)
 				}
-				userCopy.Permissions[userCopy.OrgID] = GroupScopesByAction(permissions)
+				userCopy.Permissions[targetOrgID] = GroupScopesByAction(permissions)
 			}
 
 			authorize(c, ac, &userCopy, evaluator)
@@ -221,7 +228,7 @@ func AuthorizeInOrgMiddleware(ac AccessControl, service Service, cache userCache
 			if c.SignedInUser.Permissions == nil {
 				c.SignedInUser.Permissions = make(map[int64]map[string][]string)
 			}
-			c.SignedInUser.Permissions[userCopy.OrgID] = userCopy.Permissions[userCopy.OrgID]
+			c.SignedInUser.Permissions[targetOrgID] = userCopy.Permissions[targetOrgID]
 		}
 	}
 }