Is CVE-2026-86334 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-86334?

CVE-2026-86334 has a CVSS v3 severity of MEDIUM (4.2).

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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.