diff options
Diffstat (limited to 'lib/rexml/entity.rb')
-rw-r--r-- | lib/rexml/entity.rb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/rexml/entity.rb b/lib/rexml/entity.rb index 39f3900075..f447202394 100644 --- a/lib/rexml/entity.rb +++ b/lib/rexml/entity.rb @@ -138,8 +138,14 @@ module REXML matches = @value.scan(PEREFERENCE_RE) rv = @value.clone if @parent + sum = 0 matches.each do |entity_reference| entity_value = @parent.entity( entity_reference[0] ) + if sum + entity_value.bytesize > Security.entity_expansion_text_limit + raise "entity expansion has grown too large" + else + sum += entity_value.bytesize + end rv.gsub!( /%#{entity_reference.join};/um, entity_value ) end end |