Download Latest Version Apache CloudStack 4.22.1.0 (LTS) source code.zip (26.6 MB)
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Apache CloudStack 4.22.0.1 (LTS Security Release) source code.tar.gz 2026-05-06 14.9 MB
Apache CloudStack 4.22.0.1 (LTS Security Release) source code.zip 2026-05-06 26.4 MB
README.md 2026-05-06 1.2 kB
Totals: 3 Items   41.3 MB 1

This is a security release that fixes the following on top of the 4.22.0.1 release:

CVE-2025-66170 Any user can list backups that they should not have access to. (severity 'Low') CVE-2025-66171 Any user can create a new VM from backups they should not have access to (severity 'Important') CVE-2025-66172 Any user can attach a volume in their VMs from backups they should not have access to (severity 'Important') CVE-2025-66467 MinIO policy remains intact on bucket deletion (severity 'Important') CVE-2025-69233 Domain/account resources limits not honored (severity 'Moderate') CVE-2026-25077 Unauthenticated Command Injection in Direct Download Templates (severity 'Important') CVE-2026-25199 Proxmox Extension Allows Unauthorized Cross-Tenant Instance Access(severity 'Moderate')

Advisory: https://cloudstack.apache.org/blog/security-release-advisory-4.20.3.0-4.22.0.1/

Release notes: https://docs.cloudstack.apache.org/en/4.22.0.1/releasenotes Installation docs: https://docs.cloudstack.apache.org/en/4.22.0.1/installguide Upgrade docs: https://docs.cloudstack.apache.org/en/4.22.0.1/upgrading Admin docs: https://docs.cloudstack.apache.org/en/4.22.0.1/adminguide API docs: https://cloudstack.apache.org/api/apidocs-4.22

Source: README.md, updated 2026-05-06