A vulnerability has been found and corrected in fcgi:

The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by
CGI::Fast, uses environment variable values from one request during
processing of a later request, which allows remote attackers to bypass
authentication via crafted HTTP headers (CVE-2011-2766).

The updated packages have been patched to correct this issue.