[jingo]

A quick fix would be to stop using bash.

I write hundreds of shell scripts per year and I never, ever use bash. Everything can be done with a less complex /bin/sh having only POSIX-like features.

There's no reason webservers have to use bash by default.

Sysadmins might need a hefty shell will lots of features in order to do their work, but an httpd should not need access to bash-isms. It should work fine with a very minimal POSIX-like shell.

I'm glad the systems I use do not have bash installed by default. The only time I ever use it is when a software author tries to force me to use bash by writing their install scripts in it and using bash-isms so the script will not run with a simpler shell like a BSD /bin/sh.