PT-2026-52844 · Canonical · Lxd

Miha Purg · Publicado 2026-06-26 · Atualizado 2026-06-26 · CVE-2026-9640

Mitre

CVSS v3.1

7.2

Alta

Vetor base

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

A privilege escalation vulnerability exists in LXD from 6.0 before 6.9, 5.21.0 before 5.21.5, and 5.0.0 before 5.0.7 regarding the handling of project-restriction policies during snapshot restoration.. An authenticated project operator in a restricted multi-tenant environment can bypass policy restrictions by importing a maliciously crafted instance backup containing restricted configuration keys within a snapshot. When the snapshot is restored, these restricted keys are applied to the live instance without policy validation. Starting the modified instance grants the operator unauthorized host root access.

Correção

Incorrect Authorization

Enumeração de Fraquezas

CWE-863

Identificadores relacionados

CVE-2026-9640

Produtos afetados

Lxd

Referências · 5

• https://github.com/canonical/lxd/pull/18301 · Correção
• https://github.com/canonical/lxd/pull/18303 · Correção
• https://github.com/canonical/lxd/security/advisories/GHSA-ppq7-4492-5552 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-9640 · Nota de Segurança
• https://github.com/canonical/lxd/pull/18304 · Correção