CVE-2026-23954
HIGH
GHSA-7f67-crqm-jgh7
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Lifecycle Timeline
4Tags
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.
Analysis
Incus is a system container and virtual machine manager. [CVSS 8.7 HIGH]
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Remediation
Within 24 hours: Identify all systems running Incus and assess their criticality and exposure. Within 7 days: Apply the available vendor patch to all non-production Incus instances and complete testing in staging environments. …
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External POC / Exploit Code
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