CVE-2026-63343: Incus is a system container and virtual machine manager. Prior to version 7.3.0, a malicious image containing a `metadata.yaml` symlink pointing to an…

PriorityP266critical9.9CVSS 3.1

AVNACLPRLUINSCCHIHAH

EPSS

0.27%

18.5th percentile

Incus is a system container and virtual machine manager. Prior to version 7.3.0, a malicious image containing a `metadata.yaml` symlink pointing to an arbitrary host path allows an authenticated Incus user to read or overwrite any file on the host as root via the instance metadata API. The `exec-output` and `templates/` paths were patched in a prior release using `Lstat` rejection and `os.OpenRoot` confinement; `metadata.yaml` was not included in either patch and remains exploitable. Version 7.3.0 patches the issue.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
lxc	incus	< 7.3.0	7.3.0

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