CVE-2026-62420: Canonical LXD, заобикаляне на вход и права

Описание

Оригинално описание

An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an instance cross-project to a different cluster member via POST /1.0/instances/{name} with migration: true, project: <target>, and target: <member>, the destination node skips all project restriction checks because the request arrives as an internal cluster notification. An attacker can exploit this to introduce disallowed instance configurations into a restricted project.

Засегнати продукти

• Canonical LXD: 5.0.0 преди 5.0.8; 5.21.0 преди 5.21.6; 6.0 преди 6.10

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-2026-62420
• https://nvd.nist.gov/vuln/detail/CVE-2026-62420
• https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g
• https://github.com/canonical/lxd/pull/18651
• https://github.com/canonical/lxd/pull/18605