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.
https://access.redhat.com/errata/RHSA-2026:79114
https://access.redhat.com/errata/RHSA-2026:74499
https://access.redhat.com/errata/RHSA-2026:70615
https://access.redhat.com/errata/RHSA-2026:70586
https://access.redhat.com/errata/RHSA-2026:69119
https://access.redhat.com/errata/RHSA-2026:69118
https://access.redhat.com/errata/RHSA-2026:67857
https://access.redhat.com/errata/RHSA-2026:66357
https://access.redhat.com/errata/RHSA-2026:65851
https://access.redhat.com/errata/RHSA-2026:65839
https://access.redhat.com/errata/RHSA-2026:63044
https://access.redhat.com/errata/RHSA-2026:63041
https://access.redhat.com/errata/RHSA-2026:62549
https://access.redhat.com/errata/RHSA-2026:62409
https://access.redhat.com/errata/RHSA-2026:62269
https://access.redhat.com/errata/RHSA-2026:61252
https://access.redhat.com/errata/RHSA-2026:60445
https://access.redhat.com/errata/RHSA-2026:60440
https://access.redhat.com/errata/RHSA-2026:57785
https://access.redhat.com/errata/RHSA-2026:57775
https://access.redhat.com/errata/RHSA-2026:57772
https://access.redhat.com/errata/RHSA-2026:57580
https://access.redhat.com/errata/RHSA-2026:54576
https://github.com/dracutdevs/dracut/blob/master/modules.d/99base/dracut-lib.sh
https://github.com/dracutdevs/dracut/blob/master/modules.d/40network/netroot.sh
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-54451
https://bugzilla.redhat.com/show_bug.cgi?id=2500889