Log in Start free

Vulnerability · Published Jun 10, 2026 · Assigned by redhat

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

High 7.5

In plain English

A high-severity OS command injection in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.3%top 29.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10dracut107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-caps107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-caps049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-caps057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-config-generic107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-config-generic049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-config-generic057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-config-rescue107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-config-rescue049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-config-rescue057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-live107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-live049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-live057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-network107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-network049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-network057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-squash107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-squash049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-squash057-115.git20260527.el9_8ALSA-2026:26533
AlmaLinux:10dracut-tools107-7.el10_2ALSA-2026:26532
AlmaLinux:8dracut-tools049-244.git20260529.el8_10ALSA-2026:26534
AlmaLinux:9dracut-tools057-115.git20260527.el9_8ALSA-2026:26533
Debian:12dracutno fix listedDEBIAN-CVE-2026-6893
Debian:13dracutno fix listedDEBIAN-CVE-2026-6893
Debian:14dracut112-1DEBIAN-CVE-2026-6893
Rocky Linux:10dracut0:107-7.el10_2RLSA-2026:26532
Rocky Linux:8dracut0:049-244.git20260529.el8_10RLSA-2026:26534
Rocky Linux:9dracut0:057-115.git20260527.el9_8RLSA-2026:26533
Ubuntu:24.04:LTSdracut060+5-1ubuntu3.4USN-8828-1
Ubuntu:24.04:LTSdracut060+5-1ubuntu3.4UBUNTU-CVE-2026-6893
Ubuntu:25.10dracutno fix listedUBUNTU-CVE-2026-6893
Ubuntu:26.04:LTSdracut110-11ubuntu0.1USN-8828-1

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION see references
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support see references
Red Hat Red Hat OpenShift Container Platform 4.12 see references
Red Hat Red Hat OpenShift Container Platform 4.13 see references
Red Hat Red Hat OpenShift Container Platform 4.14 see references
Red Hat Red Hat OpenShift Container Platform 4.15 see references
Red Hat Red Hat OpenShift Container Platform 4.16 see references
Red Hat Red Hat OpenShift Container Platform 4.17 see references
Red Hat Red Hat OpenShift Container Platform 4.18 see references
Red Hat Red Hat OpenShift Container Platform 4.18 see references
Red Hat Red Hat OpenShift Container Platform 4.19 see references
Red Hat Red Hat Hardened Images see references

Weakness: CWE-78 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References