9.9
Critical
CVE-2026-63343 Incus is a system container and virtual machine manager
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| incus 7.3 | earliest → < 7.3.0 | 7.3.0 |
References
- github.com github.com
Timeline
- Published
- Last modified
Other CVEs of incus
The 47 CVEs of incus →
CVE-2026-115378
Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability in…
6.9
Medium
CVE-2026-115377
Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability that…
9.4
Critical
CVE-2026-115376
Incus 7.0.1 before 7.0.2 and 7.2.0 before 7.5.0 contains an authorization bypass vulnerability that allows…
8.3
High
CVE-2026-115375
Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 Path Traversal via Instance Backup Dependent Volumes
9.4
Critical