Incus is a system container and virtual machine manager. Prior to version 7.2.0, the `record-output` parameter of the `/instances/$name/exec` endpoint stores the output of the command in the `exec-output` directory of the instance. If `exec-output` is a symlink, file named `exec_UUID.stdout` and `exec_UUID.stderr` can be written to an arbitrary location where the `.stdout` file will contain arbitrary content. This behavior can be abused for arbitrary command execution. Version 7.2.0 contains a patch.
Metrics
Affected Vendors & Products
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Advisories
| Source | ID | Title |
|---|---|---|
 Debian DSA |
DSA-6370-1 | incus security update |
| Debian DSA |
DSA-6373-1 | lxd security update |
 Github GHSA |
GHSA-73hr-m85f-64v9 | Incus has an arbitrary file write on host via `exec-output` symlink in crafted image |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 21 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Incus is a system container and virtual machine manager. Prior to version 7.2.0, the `record-output` parameter of the `/instances/$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. | |
| Title | Incus has an arbitrary file write on host via `exec-output` symlink in crafted image | |
| Weaknesses | CWE-73 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-21T14:19:45.109Z
Reserved: 2026-05-22T19:10:35.748Z
Link: CVE-2026-48750
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses