It has nothing to do with the variables. It's that you're forking twice in the same statement (at least that's my guess). Try these:

#!/usr/bin/perl -T

use strict;
use warnings;

$ENV{PATH} = '/usr/bin:/usr/local/bin:/bin';
$ENV{ENV} = '';

my ($a,$b) = (`mktemp /tmp/temp.XXXXXX`, `mktemp /tmp/temp.XXXXXX`);
my $temp_fails = [ $a, $b ];
__END__
Insecure dependency in `` while running with -T switch at ./foo line 9
+.

[download]
#!/usr/bin/perl -T

use strict;
use warnings;

$ENV{PATH} = '/usr/bin:/usr/local/bin:/bin';
$ENV{ENV} = '';

my $a = `mktemp /tmp/temp.XXXXXX`;
my $b = `mktemp /tmp/temp.XXXXXX`;
my $temp_fails = [ $a, $b ];
__END__

[download]

The latter works just fine

duff

In reply to Re: Taint bug with backticks in variable assignments by duff
in thread Taint bug with backticks in variable assignments by shotgunefx

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