RHSA-2026:69118HighCVSS 7.5

Red Hat Security Advisory: dracut security update

Published
September 21, 2026
Last Modified
September 21, 2026

🔗 CVE IDs covered (3)

CVE-2026-6893 →CVE-2026-15816 →CVE-2026-16445 →

📋 Description

CVE-2026-6893 — dracut: dracut: Root code execution via DHCP options command injection CVE-2026-15816 — dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die() CVE-2026-16445 — dracut: dracut: Root code execution via DHCP options command injection in NetworkManager initrd module

🎯 Affected products24

  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-0:049-138.git20220131.el8_4.1.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-0:049-138.git20220131.el8_4.1.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-caps-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-caps-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-config-generic-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-config-generic-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-config-rescue-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-config-rescue-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-debuginfo-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-debuginfo-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-debugsource-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-debugsource-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-live-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-live-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-network-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-network-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-squash-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-squash-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • dracut-tools-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • dracut-tools-0:049-138.git20220131.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this issue, ensure that systems configured to obtain network settings via DHCP in the initramfs are only booted on trusted networks. This vulnerability requires an attacker to control a DHCP server on the adjacent network segment. If network configuration via DHCP is not strictly necessary during the initramfs phase, consider using static network configuration. Workaround: Restrict DHCP server access on networks used for network boot (DHCP snooping, dedicated/trusted provisioning VLANs) until a fix is available. Workaround: Avoid using the root=dhcp/netroot=dhcp/root=dhcp6/netroot=dhcp6 kernel command-line options — these cause dracut to trust the DHCP server's root-path option to determine the boot target. Configuring the netroot target explicitly on the kernel/PXE command line instead (e.g. netroot=nfs:<server>:<path> or netroot=iscsi:... with a literal value).

🔗 References (6)