一线运维实战手记 · 云计算 · 数据库 · 故障排查
2026年9月4日

CVE-2026-63299 [CRITICAL] – An authorization bypass vulnerability in LXD allows an authenticated user to bypass projec

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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.