I don't see any security issues either, but I would recommend for the sake of efficiency that you place a /o modifier on your regex, unless you plan to run this under mod_perl.
  
my @lines = grep /\Q$find/io, @$data_ref;

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You can also skip all the quotemeta and untainting rigamorole for $find, if using the above construct. Perl doesn't care about the taintedness of a variable interpolated into a regex, unless the var contains an eval-group and use re 'eval' is on, which taint mode will summarily ignore. 
   MeowChow                                   
               s aamecha.s a..a\u$&owag.print

In reply to (MeowChow) Re: Is this CGI search secure? by MeowChow
in thread Is this CGI search secure? by tachyon

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