Vulnerability Details CVE-2026-62420
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 30.4%
CVSS Severity
CVSS v3 Score 9.9
Products affected by CVE-2026-62420
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cpe:2.3:a:canonical:lxd:5.0.0
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cpe:2.3:a:canonical:lxd:5.0.1
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cpe:2.3:a:canonical:lxd:5.0.2
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cpe:2.3:a:canonical:lxd:5.0.3
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cpe:2.3:a:canonical:lxd:5.0.4
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cpe:2.3:a:canonical:lxd:5.0.5
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cpe:2.3:a:canonical:lxd:5.0.6
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cpe:2.3:a:canonical:lxd:5.0.7
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cpe:2.3:a:canonical:lxd:5.1
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cpe:2.3:a:canonical:lxd:5.10
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cpe:2.3:a:canonical:lxd:5.11
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cpe:2.3:a:canonical:lxd:5.12
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cpe:2.3:a:canonical:lxd:5.13
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cpe:2.3:a:canonical:lxd:5.14
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cpe:2.3:a:canonical:lxd:5.15
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cpe:2.3:a:canonical:lxd:5.16
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cpe:2.3:a:canonical:lxd:5.17
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cpe:2.3:a:canonical:lxd:5.18
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cpe:2.3:a:canonical:lxd:5.19
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cpe:2.3:a:canonical:lxd:5.2
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cpe:2.3:a:canonical:lxd:5.20
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cpe:2.3:a:canonical:lxd:5.21.0
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cpe:2.3:a:canonical:lxd:5.21.1
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cpe:2.3:a:canonical:lxd:5.21.2
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cpe:2.3:a:canonical:lxd:5.21.3
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cpe:2.3:a:canonical:lxd:5.21.4
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cpe:2.3:a:canonical:lxd:5.21.5
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cpe:2.3:a:canonical:lxd:5.3
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cpe:2.3:a:canonical:lxd:5.4
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cpe:2.3:a:canonical:lxd:5.5
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cpe:2.3:a:canonical:lxd:5.6
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cpe:2.3:a:canonical:lxd:5.7
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cpe:2.3:a:canonical:lxd:5.8
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cpe:2.3:a:canonical:lxd:5.9
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cpe:2.3:a:canonical:lxd:6.0
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cpe:2.3:a:canonical:lxd:6.1
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cpe:2.3:a:canonical:lxd:6.2
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cpe:2.3:a:canonical:lxd:6.3
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cpe:2.3:a:canonical:lxd:6.4
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cpe:2.3:a:canonical:lxd:6.5
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cpe:2.3:a:canonical:lxd:6.6
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cpe:2.3:a:canonical:lxd:6.7
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cpe:2.3:a:canonical:lxd:6.8
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cpe:2.3:a:canonical:lxd:6.9