A flaw was found in dracut.
CVE-2026-6893
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.
Assessment
- CVSS
- 7.5 (v3.1)
- Severity
- High
- EPSS
- 1.28% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 10 June 2026
- Last updated
- 2 November 2026
- Affected
- Red Hat · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION · Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Assigner
- redhat
CVSS vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
At the source
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
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