CVE-2026-63125

NameCVE-2026-63125
DescriptionIncus is a system container and virtual machine manager. Prior to version 7.3.0, an unprivileged, project-confined Incus user (a non-admin TLS/RBAC identity with `can_create_images` and `can_create_instances`) can execute arbitrary code as root on the host. A crafted image ships `backup.yaml` as a symlink to a host file. When the root daemon writes the instance's backup file, it follows the symlink. Version 7.3.0 patches the issue.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-6407-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
incus (PTS)trixie6.0.4-2+deb13u8vulnerable
trixie (security)6.0.4-2+deb13u9fixed
forky, sid7.0.1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
incussourcetrixie6.0.4-2+deb13u9DSA-6407-1
incussource(unstable)7.0.1-2

Notes

https://github.com/lxc/incus/security/advisories/GHSA-6rqx-22hc-qm36
https://github.com/lxc/incus/pull/3750

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