RHSA-2026:57775HighCVSS 7.5

Red Hat Security Advisory: dracut security update

Published
August 20, 2026
Last Modified
August 20, 2026

🔗 CVE IDs covered (2)

CVE-2026-6893 →CVE-2026-15816 →

📋 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()

🎯 Affected products51

  • Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-0:057-25.git20250717.el9_2.2.s390x as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-0:057-25.git20250717.el9_2.2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-0:057-25.git20250717.el9_2.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-caps-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-caps-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-caps-0:057-25.git20250717.el9_2.2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-caps-0:057-25.git20250717.el9_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-config-generic-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-generic-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-generic-0:057-25.git20250717.el9_2.2.s390x as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-generic-0:057-25.git20250717.el9_2.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-rescue-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-rescue-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-rescue-0:057-25.git20250717.el9_2.2.s390x as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-config-rescue-0:057-25.git20250717.el9_2.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.s390x as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-debuginfo-0:057-25.git20250717.el9_2.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-debugsource-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • dracut-debugsource-0:057-25.git20250717.el9_2.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • dracut-debugsource-0:057-25.git20250717.el9_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • +21 more not shown

✅ 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.

🔗 References (5)