Upstream information

CVE-2026-85185 at MITRE

Description

Path traversal in the btrfs storage driver in Canonical LXD versions 4.0.2 and later (fixed in 4.0.14, 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create instances in a project to delete arbitrary files on the host as root. On hosts whose root filesystem is btrfs, the client can also place attacker-controlled content at arbitrary host paths, leading to full host compromise. The client does this with a crafted subvolume path containing ../ sequences, sent in either of two ways: in the optimized_header.yaml of an optimized btrfs backup, or in the btrfs migration header sent by a malicious migration source.

Other Security Trackers

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v3 Scores
CVSS detail CNA (Canonical)
Base Score 9.6
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • incus >= 7.5.1-1.1
  • incus-cli >= 7.5.1-1.1
  • incus-cli-bash-completion >= 7.5.1-1.1
  • incus-cli-fish-completion >= 7.5.1-1.1
  • incus-cli-zsh-completion >= 7.5.1-1.1
  • incus-tools >= 7.5.1-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11983

SUSE Timeline for this CVE

CVE page created: Mon Oct 5 14:02:17 2026
CVE page last modified: Mon Oct 5 14:02:17 2026