CVE-2026-86334

Name	CVE-2026-86334
Description	Path traversal in the CLI client image export and copy functionality in Canonical LXD from 4.0.2 before 4.0.14, 5.0.10, 5.21.8, and 6.10 on all platforms allows a remote malicious or machine-in-the-middle image server to overwrite arbitrary local files and execute code on the client system via a crafted Content-Disposition header filename parameter during unified image export or copy operations into a local directory target.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
lxd (PTS)	bookworm, bookworm (security)	5.0.2-5+deb12u6	vulnerable
	trixie (security), trixie	5.0.2+git20231211.1364ae4-9+deb13u7	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
lxd	source	bookworm	(unfixed)	end-of-life
lxd	source	(unstable)	(unfixed)

[bookworm] - lxd <end-of-life> (EOL in bookworm LTS)
https://github.com/canonical/lxd/security/advisories/GHSA-g4cm-f533-78hq