Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A flaw was found in dracut. The die() function in dracut-lib.sh appends its error message to $hookdir/emergency/01-die.sh using echo "warn dracut: FATAL: \"$*\"", without shell-quoting the message. When the message passed to die() contains DHCP-controlled data -- specifically $netroot, derived from the DHCP ROOT_PATH option via netroot.sh's handler-resolution failure path (die "No handler for netroot type '$netroot'") -- a command-substitution sequence such as $(cmd) embedded in that data survives into the generated 01-die.sh line and executes as root the next time dracut sources the emergency hook directory. This occurs during dracut's standard boot-failure handling: when the netroot handler cannot be resolved, dracut's initqueue-timeout fallback (or, on non-default rd.shell configurations, die() itself) eventually invokes emergency_shell(), which sources every script under $hookdir/emergency/, including the attacker-poisoned 01-die.sh. This is a distinct code path from CVE-2026-6893 (dhclient-script.sh writing unescaped DHCP hostname/route values); CVE-2026-6893's fix does not touch die() and does not remediate this issue.