CVE-2026-12411: Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's…

PriorityP357critical9.6CVSS 3.1

AVNACLPRLUINSCCHIHAN

EPSS

0.21%

11.0th percentile

Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.volumes is enabled.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
canonical	lxd	>= 6.6 < 6.9	6.9

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