CVE-2026-85526

Published: Set 28, 2026 Last Modified: Set 28, 2026

ExploitDB:

Other exploit source:

Google Dorks:

CRITICAL 9,9

Source: [email protected]

Attack Vector: network

Attack Complexity: low

Privileges Required: low

User Interaction: none

Scope: changed

Confidentiality: high

Integrity: high

Availability: high

Description

AI Translation Available

Path traversal in the Btrfs storage driver (unpackVolume) in Canonical LXD on Linux allows an authenticated user with instance creation privileges to delete or replace arbitrary files and directories on the host filesystem as root via a crafted subvolumes[].path entry in backup/optimized_header.yaml during a btrfs optimized backup import.