CVE-2026-15816

Name	CVE-2026-15816
Description	A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dracut (PTS)	bullseye	051-1	vulnerable
	bookworm	059-4	vulnerable
	trixie	106-6	vulnerable
	forky, sid	112-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
dracut	source	(unstable)	(unfixed)

Notes

[trixie] - dracut <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2459963
https://bugzilla.redhat.com/show_bug.cgi?id=2500889
check