CVE-2026-85526 Affecting lxd package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Sept 2026
- disclosed28 Sept 2026
Introduced: 28 Sep 2026
NewCVE-2026-85526 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest lxd.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lxd package and not the lxd package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2026-85526
- https://github.com/canonical/lxd-private/pull/103
- https://github.com/canonical/lxd-private/pull/104
- https://github.com/canonical/lxd-private/pull/105
- https://github.com/canonical/lxd-private/pull/84
- https://github.com/canonical/lxd-private/pull/87
- https://github.com/canonical/lxd/security/advisories/GHSA-h85r-gjgx-g2rv