Debian LTS: DLA-3874-1: nsis Security Advisory Updates
Summary
Nullsoft Scriptable Install System (NSIS) before 3.09 mishandles
access control for an uninstaller directory.
For Debian 11 bullseye, this problem has been fixed in version
3.06.1-1+deb11u1.
We recommend that you upgrade your nsis packages.
For the detailed security status of nsis please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/nsis
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS