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VULNERABILITIES

CVE-2026-62420 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g CISA-ADPVendor AdvisoryExploitMitigation
https://github.com/canonical/lxd/pull/18605 [email protected]Patch
https://github.com/canonical/lxd/pull/18651 [email protected]Patch
https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g [email protected]Vendor AdvisoryExploitMitigation

Weakness Enumeration

CWE-IDCWE NameSource
CWE-863Incorrect Authorization[email protected]

Affected Products

ProductVersions
canonical lxd
>= 5.0.0, < 5.0.8
>= 5.1, < 5.21.6
>= 6.0, < 6.10

CPE

  • cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-62420
NVD Published Date:
Aug 12, 2026
NVD Last Modified:
Sep 11, 2026
Source:
[email protected]