CVE-2026-6893: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Red Hat Red Hat Enterprise Linux 10
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.
CVE-2026-6893: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Red Hat 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
Affected software
cpe:/o:redhat:enterprise_linux:10cpe:/o:redhat:enterprise_linux:6cpe:/o:redhat:enterprise_linux:7cpe:/o:redhat:enterprise_linux:8cpe:/o:redhat:enterprise_linux:9cpe:/a:redhat:hummingbird:1Technical 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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