CVE-2026-48753
Critical
Description
Incus is a system container and virtual machine manager. Prior to version 7.1.0, the S3 protocol upload endpoint is vulnerable to path traversal and allows creation of arbitrary files on the host. This behavior could lead to arbitrary command execution. Version 7.1.0 fixes the issue.
SeverityCritical
CVSS9.9
Exploit probability—
ProductGithub.com/lxc/incus/v7/cmd/incusd
PublishedAug 21, 2026
First seenAug 21, 2026
Weakness typeCWE-73CWE-73
How to fix
Update
- github.com/lxc/incus/v7/cmd/incusd7.1.0 or later
- github.com/lxc/incus/v77.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/lxc/incus/v7/cmd/incusdGo | v < 7.1.0 | 7.1.0 |
| github.com/lxc/incusGo | No range specified | — |
| github.com/lxc/incus/v6Go | No range specified | — |
| github.com/lxc/incus/v7Go | v < 7.1.0 | 7.1.0 |
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