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Vulnerabilities CVE-2026-6893

CVE-2026-6893

High
Open
TLP:CLEAR

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

NVD CVE.org
Critical Infrastructure

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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.

Details

CVSS Score
7.5
EPSS Score
1.09%

62.6th percentile

CVSS Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Jun 10, 2026
Last Modified
Aug 20, 2026
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