Dracut: dracut: root code execution via dhcp options command injection

Summary

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.

Timeline

1. Jun 10, 2026, 7:49 PM UTCCVE published
2. Jun 12, 2026, 12:29 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Oct 27, 2026, 9:54 PM UTCRecord last updated

Affected versions

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• dracut

  Version range not reported

• openshift/ose-rhel-coreos-8

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

• dracut-main

  Version range not reported

References 25