Vulnerability Details CVE-2026-63299
An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 33.4%
CVSS Severity
CVSS v3 Score 9.9
Products affected by CVE-2026-63299
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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