CVE-2026-9639

Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/canonical/lxd/pull/18320	Issue Tracking Patch
https://github.com/canonical/lxd/pull/18390	Issue Tracking Patch
https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8	Exploit Patch Vendor Advisory
https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8	Exploit Patch Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:canonical:lxd::::::::
	cpe:2.3:a:canonical:lxd::::::::

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Desreferencia de puntero nulo en CreateCustomVolumeFromBackup en LXD hasta la versión 6.8 y 5.21 en Linux permite a un usuario autenticado con permisos can_create_storage_volumes causar una denegación de servicio mediante un tarball de respaldo de volumen personalizado especialmente diseñado que omite el campo de instantánea expires_at.

Information

Published : 2026-06-26 16:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-9639

Mitre link : CVE-2026-9639

CVE.ORG link : CVE-2026-9639

JSON object : View

Products Affected

linux

linux_kernel

canonical

lxd

CWE

CWE-476

NULL Pointer Dereference

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