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CVE-2026-6893: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Red Hat Red Hat Enterprise Linux 10

0
High
VulnerabilityCVE-2026-6893cvecve-2026-6893
Published: Wed Jun 10 2026 (06/10/2026, 19:49:27 UTC)
Source: CVE Database V5
Vendor/Project: Red Hat
Product: Red Hat Enterprise Linux 10

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.

CVSS v3.1

Score 8.8high

Attack Vector
Adjacent Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

CPE configurations (7)
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
cpe:/a:redhat:hummingbird:1

Technical Details

Data Version
5.2
Assigner Short Name
redhat
Date Reserved
2026-04-23T04:58:44.915Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null
Vendor Advisory Urls
[{"url":"https://access.redhat.com/security/cve/CVE-2026-6893","vendor":"Red Hat"}]

Threat ID: 6a29c2720e53e738838993c3

Added to database: 6/10/2026, 8:00:50 PM

Last updated: 6/10/2026, 8:01:05 PM

Views: 1

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