CVE-2026-9639

MEDIUM

Authenticated Denial of Service via Malicious Backup Tarball in LXD

Title source: cna
STIX 2.1

Description

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.

References (3)

Core 3

Scores

CVSS v3 6.5
EPSS 0.0039
EPSS Percentile 31.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (3)
canonical/lxd 5.0.0 - 5.21.5
Canonical/LXD 5.21.0 - 5.21.5
Canonical/LXD 6.0 - 6.9
Published Jun 26, 2026
Tracked Since Jun 26, 2026