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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Security
# This cop checks for the use of YAML class methods which have
# potential security issues leading to remote code execution when
# loading from an untrusted source.
#
# @example
# # bad
# YAML.load("--- foo")
#
# # good
# YAML.safe_load("--- foo")
# YAML.dump("foo")
#
class YAMLLoad < Cop
MSG = 'Prefer using `YAML.safe_load` over `YAML.load`.'.freeze
def_node_matcher :yaml_load, <<-PATTERN
(send (const {nil? cbase} :YAML) :load ...)
PATTERN
def on_send(node)
yaml_load(node) do
add_offense(node, location: :selector)
end
end
def autocorrect(node)
->(corrector) { corrector.replace(node.loc.selector, 'safe_load') }
end
end
end
end
end
Version data entries
6,792 entries across 6,786 versions & 25 rubygems