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-rw-r--r--lib/yaml.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/yaml.rb b/lib/yaml.rb
index 76657cdd0b..f2177accbd 100644
--- a/lib/yaml.rb
+++ b/lib/yaml.rb
@@ -73,6 +73,10 @@ end
# YAML.dump("foo") # => "--- foo\n...\n"
# { :a => 'b'}.to_yaml # => "---\n:a: b\n"
#
+# Do not use YAML to load untrusted data. Doing so is unsafe and could allow
+# malicious input to execute arbitrary code inside your application. Please see
+# doc/security.rdoc for more information.
+#
# For more advanced details on the implementation see Psych, and also check out
# yaml.org for spec details and other helpful information.
module YAML; end