CVE-2026-40195

NameCVE-2026-40195
DescriptionIncus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in the storage bucket import logic allows an authenticated user with access to the storage bucket feature to cause the Incus daemon to crash. The vulnerability is present in the backup metadata handling logic, where the daemon processes the index.yaml file from an imported archive and accesses members of the parsed backup configuration without first verifying that the configuration object was initialized. A malicious or malformed index.yaml that omits the config block causes a nil-pointer dereference during bucket import operations and terminates the daemon. Repeated use of this issue can be used to keep Incus offline, causing a denial of service. This issue is fixed in version 7.0.0.
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-6244-1
Debian Bugs1135644

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
incus (PTS)trixie (security), trixie6.0.4-2+deb13u7fixed
forky, sid7.0.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
incussourcetrixie6.0.4-2+deb13u7DSA-6244-1
incussource(unstable)7.0.0-11135644

Notes

https://github.com/lxc/incus/security/advisories/GHSA-gc7j-g665-rxr9
https://github.com/lxc/incus/pull/3273

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