safely parsing maps in clojure -

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I'm looking for an easy and secure way to parse a map, and only a map, untrusted source maps Contains keywords and numbers, What are the security concerns of using the to read ?

read is completely insecure by default, this arbitrary code execution allows for. Try (for example "print-string \" hello \ ")") .

You can secure it by binding * read-eval * if any # = signaling is used on the wrong An exception will start, for example:

(binding [* reading-aval * false] (read-string "# = (println \" hello \ ")"))

Finally, supplying a large number of keywords (: foo,: bar), depending on how you are using it, is potentially a disapproval of service attack. The keywords are closed and never free; if enough use is done, then this process will be out of memory, on the closing-dev list.


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