CVE-2026-15816Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 9 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:107-9.el10_2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:105-4.el10_0.1 not affected | CNA record |
from 0:004-413.el6_10 not affected | CNA record | |
from 0:049-138.git20220131.el8_4.1 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life | from 0:049-138.git20220131.el8_4.1 not affected | CNA record |
from 0:049-223.git20230119.el8_8.1 not affected | CNA record | |
from 0:049-223.git20230119.el8_8.1 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:057-89.git20250311.el9_6.1 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4.13 redhat:openshift | from 413.92.202609080414-0 not affected | CNA record |
Red Hat Red Hat Hardened Images redhat:hummingbird | 1 | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:54571vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:54575vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:54576vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:57580vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:57772vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:57775vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:57785vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60440vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60445vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61252vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:62269vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:62409vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:62549vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:63041vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:63044vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65839vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65851vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:66357vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67857vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69118vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69119vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:70586vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:70615vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:74499vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:79114vendor-advisory, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.