CVE-2026-9640: Canonical LXD, заобикаляне на вход и права

Описание

Оригинално описание

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.

Засегнати продукти

• Canonical LXD: 5.21.0 преди 5.21.5; 5.0.0 преди 5.0.7; 6.0 преди 6.9

Вид слабост

• CWE-863 Incorrect Authorization

История

Други уязвимости в Canonical LXD

• 10.0CVE-2026-112816
• 5.8CVE-2026-87798
• 9.9CVE-2026-87799
• 7.7CVE-2026-97335
• 9.6CVE-2026-85185

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-9640
• https://nvd.nist.gov/vuln/detail/CVE-2026-9640
• https://github.com/canonical/lxd/security/advisories/GHSA-ppq7-4492-5552
• https://github.com/canonical/lxd/pull/18301
• https://github.com/canonical/lxd/pull/18303
• https://github.com/canonical/lxd/pull/18304