CGI.pm will look among the following directories for one that is writeable to your CGI user (non-Unix directories left out): 
Contents of environment variable TMPDIR
/usr/tmp
/var/tmp
/tmp
/temp
current working directory

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In your case, none of the above directories seem to be writable to your CGI user.

The easiest solution is probably to set $ENV{'TMPDIR'} in your code to point to a directory that is writable to your CGI user.

CU
Robartes-

In reply to Re: CGI open of tmpfile by robartes
in thread CGI open of tmpfile by darshan_atha

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