Debian DSA-5078-1: Zsh Moderate Security Issue with Recursive Expansion

For the oldstable distribution (buster), this problem has been fixed
in version 5.7.1-1+deb10u1.

For the stable distribution (bullseye), this problem has been fixed in
version 5.8-6+deb11u1.

We recommend that you upgrade your zsh packages.

For the detailed security status of zsh please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/zsh

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/