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CVE-2026-23954

🔴 HIGH

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 di...

Published
Jan 22, 2026
Last Modified
Jan 26, 2026
Views
6
Bookmarks
0

Description

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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.

CVSS Scores

CVSS 3.1 8.7
8.7
HIGH
CVSS 2.0 8.7

References

github.com github.com github.com github.com github.com

Additional Information

Source
security-advisories@github.com
State
Undergoing analysis

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