Incus is a system container and virtual machine manager. Prior to version 7.2.0, the `record-output` parameter of the `/instances/$name/exec` endpoint stores the output of the command in the `exec-output` directory of the instance. If `exec-output` is a symlink, file named `exec_UUID.stdout` and `exec_UUID.stderr` can be written to an arbitrary location where the `.stdout` file will contain arbitrary content. This behavior can be abused for arbitrary command execution. Version 7.2.0 contains a patch.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade incus | Aug 24, 2026 | Aug 21, 2026 |
| Debian | — | Upgrade lxdUpgrade incus | Jul 23, 2026 | Jul 23, 2026 |
| Gentoo Linux | — | Upgrade app-containers/incus. | Aug 25, 2026 | Aug 25, 2026 |
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