PT-2026-47209 · Incus · Incus
CVE-2026-47753
·
Published
2026-05-29
·
Updated
2026-06-25
CVSS v4.0
4.4
Medium
| Vector | AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U |
Name of the Vulnerable Software and Affected Versions
Incus (affected versions not specified)
Description
A nil-pointer dereference exists in the
CreateInstanceFromBackup() function within the internal/server/storage/backend.go file. An authenticated user with permissions to create instances in any project can trigger this issue remotely by uploading a specially crafted backup tarball. Specifically, if the backup/index.yaml file within the tarball omits the volume: field in the config: block, the system fails to validate the Volume variable before dereferencing it. This causes the Incus daemon to panic and the incusd process to crash, resulting in a denial of service for all projects on that cluster member. The attack is performed via a POST request to the endpoint "/1.0/instances?project=".
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Incus