CVE-2026-15816
7.5 ÉlevéeDescription
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.
Produits concernés
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION
- Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9.6 Extended Update Support
- Red Hat OpenShift Container Platform 4.13
- Red Hat OpenShift Container Platform 4.14
- Red Hat OpenShift Container Platform 4.15
- Red Hat OpenShift Container Platform 4.16
- Red Hat OpenShift Container Platform 4.17
- Red Hat OpenShift Container Platform 4.18
- Red Hat OpenShift Container Platform 4.19
- Red Hat OpenShift Container Platform 4.20
- Red Hat OpenShift Container Platform 4.21
- Red Hat OpenShift Container Platform 4.22
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 7.5 Élevée | secalert@redhat.com | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:54571
- https://access.redhat.com/errata/RHSA-2026:54575
- https://access.redhat.com/errata/RHSA-2026:54576
- https://access.redhat.com/errata/RHSA-2026:57580
- https://access.redhat.com/errata/RHSA-2026:57772
- https://access.redhat.com/errata/RHSA-2026:57775
- https://access.redhat.com/errata/RHSA-2026:57785
- https://access.redhat.com/errata/RHSA-2026:60440
- https://access.redhat.com/errata/RHSA-2026:60445
- https://access.redhat.com/errata/RHSA-2026:61252
- https://access.redhat.com/errata/RHSA-2026:62269
- https://access.redhat.com/errata/RHSA-2026:62409
- https://access.redhat.com/errata/RHSA-2026:62549
- https://access.redhat.com/errata/RHSA-2026:63041
- https://access.redhat.com/errata/RHSA-2026:63044
- https://access.redhat.com/errata/RHSA-2026:65839
- https://access.redhat.com/errata/RHSA-2026:65851
- https://access.redhat.com/errata/RHSA-2026:66357
- https://access.redhat.com/errata/RHSA-2026:67857
- https://access.redhat.com/errata/RHSA-2026:69118
- https://access.redhat.com/errata/RHSA-2026:69119
- https://access.redhat.com/errata/RHSA-2026:70586
- https://access.redhat.com/errata/RHSA-2026:70615
- https://access.redhat.com/errata/RHSA-2026:74499
- https://access.redhat.com/errata/RHSA-2026:79114
- https://access.redhat.com/security/cve/CVE-2026-15816
- https://bugzilla.redhat.com/show_bug.cgi?id=2459963
- https://bugzilla.redhat.com/show_bug.cgi?id=2500889
- https://github.com/dracutdevs/dracut/blob/master/modules.d/40network/netroot.sh
- https://github.com/dracutdevs/dracut/blob/master/modules.d/99base/dracut-lib.sh