CVE-2026-62420

Description

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.

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Produits concernés

• Canonical LXD

Scores CVSS

Faiblesses (CWE)

• CWE-863

Références

• https://github.com/canonical/lxd/pull/18605 Patch
• https://github.com/canonical/lxd/pull/18651 Patch
• https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g Vendor AdvisoryExploitMitigation
• https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g Vendor AdvisoryExploitMitigation

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories