CVE-2026-34178

Katalog CVE

CVSS 9.1 · Critical EPSS 0,68%

Kerentanan Improper Input Validation pada canonical lxd. Skor CVSS 3.1 9.1 (Critical) menurut ubuntu.com.

Deskripsi (NVD)

In Canonical LXD before 6.8, the backup import path validates project restrictions against backup/index.yaml in the supplied tar archive but creates the instance from backup/container/backup.yaml, a separate file in the same archive that is never checked against project restrictions. An authenticated remote attacker with instance-creation permission in a restricted project can craft a backup archive where backup.yaml carries restricted settings such as security.privileged=true or raw.lxc directives, bypassing all project restriction enforcement and allowing full host compromise.

Rincian

Terbit di NVD

9 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.1 (Critical), sumber ubuntu.com
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation

EPSS (30 hari)

0,68% peluang dieksploitasi; lebih tinggi dari 50,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/canonical/lxd/security/advisories/GHSA-q96j-3fmm-7fv4 exploit · advisory pihak ketiga
• https://github.com/canonical/lxd/pull/17921 issue tracking