CVE-2026-15816
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
50/100
Published: 2026-08-07
Modified: 2026-10-27
First seen: 2026-10-29
Status: active
Attack Surface
Adjacent
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Adjacent
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
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.
Weakness Classification (1)
References & Advisories (31)
Showing 25 of 31 references