Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in the storage volume import logic allows an authenticated user with access to the storage volume feature to cause the Incus daemon to crash. The custom volume backup import subsystem contains a nil-pointer dereference vulnerability during import operations. In the snapshot import loop, the daemon iterates over entries from `srcBackup.Config.VolumeSnapshots` and assumes that each slice element is initialized, then dereferences fields such as `Name`, `Config`, `Description`, `CreatedAt`, and `ExpiresAt` without first validating the element itself. Because the yaml unmarshaler accepts explicit null array elements from an attacker-controlled index.yaml and converts them into nil pointers inside the slice, an attacker can supply a backup archive containing a null entry in the volume_snapshots array. This causes a nil-pointer dereference during custom volume import and terminates the daemon, resulting in denial of service on the affected node. Repeated use of this issue can be used to keep Incus offline, causing a denial of service. This issue is fixed in version 7.0.0.
References
| Link | Resource |
|---|---|
| https://github.com/lxc/incus/security/advisories/GHSA-r7w7-mmxr-47r9 | Exploit Vendor Advisory |
Configurations
History
07 May 2026, 17:06
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linuxcontainers
Linuxcontainers incus |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| CPE | cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* | |
| References | () https://github.com/lxc/incus/security/advisories/GHSA-r7w7-mmxr-47r9 - Exploit, Vendor Advisory |
06 May 2026, 21:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 21:16
Updated : 2026-05-07 17:06
NVD link : CVE-2026-40197
Mitre link : CVE-2026-40197
CVE.ORG link : CVE-2026-40197
JSON object : View
Products Affected
linuxcontainers
- incus
CWE
CWE-476
NULL Pointer Dereference