CVE-2026-9639CWE-476

Authenticated Denial of Service via Malicious Backup Tarball in LXD

Medium · published June 26, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
45.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00548 · 45.1th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-06-26T15:39Z
EPSS history
Timeline
  • 26 JUN 15:39Z
    Authenticated Denial of Service via Malicious Backup Tarball in LXD
    cvelistv5