1 files changed, 6 insertions, 2 deletions
diff --git a/lib/gitlab/config/loader/yaml.rb b/lib/gitlab/config/loader/yaml.rb
index cb3fc49944c..80c9abecd8e 100644
--- a/lib/gitlab/config/loader/yaml.rb
+++ b/lib/gitlab/config/loader/yaml.rb
@@ -12,8 +12,12 @@ module Gitlab
         MAX_YAML_SIZE = 1.megabyte
         MAX_YAML_DEPTH = 100
 
-        def initialize(config)
-          @config = YAML.safe_load(config, [Symbol], [], true)
+        def initialize(config, additional_permitted_classes: [])
+          @config = YAML.safe_load(config,
+            permitted_classes: [Symbol, *additional_permitted_classes],
+            permitted_symbols: [],
+            aliases: true
+          )
         rescue Psych::Exception => e
           raise Loader::FormatError, e.message
         end