Incus is a system container and virtual machine manager. Versions 6.21.0 and below allow a user with the ability to launch a container with a custom image (e.g a member of the ‘incus’ group) to use directory traversal or symbolic links in the templating functionality to achieve host arbitrary file read, and host arbitrary file write. This ultimately results in arbitrary command execution on the host. When using an image with a metadata.yaml containing templates, both the source and target paths are not checked for symbolic links or directory traversal. This can also be exploited in IncusOS. A fix is planned for versions 6.0.6 and 6.21.0, but they have not been released at the time of publication.
Metrics
Affected Vendors & Products
References
History
Fri, 30 Jan 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linuxcontainers
Linuxcontainers incus |
|
| CPEs | cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linuxcontainers
Linuxcontainers incus |
Mon, 26 Jan 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 23 Jan 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lxc
Lxc incus |
|
| Vendors & Products |
Lxc
Lxc incus |
Thu, 22 Jan 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Incus is a system container and virtual machine manager. Versions 6.21.0 and below allow a user with the ability to launch a container with a custom image (e.g a member of the ‘incus’ group) to use directory traversal or symbolic links in the templating functionality to achieve host arbitrary file read, and host arbitrary file write. This ultimately results in arbitrary command execution on the host. When using an image with a metadata.yaml containing templates, both the source and target paths are not checked for symbolic links or directory traversal. This can also be exploited in IncusOS. A fix is planned for versions 6.0.6 and 6.21.0, but they have not been released at the time of publication. | |
| Title | Incus container image templating arbitrary host file read and write | |
| Weaknesses | CWE-22 | |
| References |
|
|
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-22T21:45:55.696Z
Updated: 2026-01-26T21:02:48.738Z
Reserved: 2026-01-19T14:49:06.312Z
Link: CVE-2026-23954
Updated: 2026-01-26T21:02:44.533Z
Status : Analyzed
Published: 2026-01-22T22:16:20.833
Modified: 2026-01-30T17:28:49.473
Link: CVE-2026-23954
No data.