Summary
Ein Angreifer kann mehrere Schwachstellen in Apache CloudStack ausnutzen, um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, und um Dateien zu Manipulieren.
Product
Apache CloudStack ist eine Sofwareplattform zum Verwalten großer Netzwerke von virtuellen Maschienen als eine hoch verfügbare, hoch skalierbare Infrastructure as a Service (IaaS) Cloud Computing Plattform. CloudStack wurde von Citrix entwicklet und anschließend über Apache als Open Source Software zur Verfügung gestellt.
Vulnerabilities 7
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Critical 9.1
Apache CloudStack: Proxmox Extension Allows Unauthorized Cross-Tenant Instance Access
Instances deployed via the Proxmox extension allow unauthorized access to instances belonging to other tenants. This issue affects Apache CloudStack: from 4.21.0.0 through 4.22.0.0. The Proxmox extension for CloudStack improperly uses a user-editable instance…
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High 8.8
Apache CloudStack: Unauthenticated Command Injection in Direct Download Templates
Account users are allowed by default to register templates to be downloaded directly to the primary storage for deploying instances using the KVM hypervisor. Due to missing file name sanitization, an attacker can register malicious templates to execute arbitr…
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High 8.1
Apache CloudStack: Any user can attach a volume in their VMs from backups they should not have access to
The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can restore a volume…
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High 8.0
Apache CloudStack: MinIO policy remains intact on bucket deletion
Missing MinIO policy cleanup on bucket deletion via Apache CloudStack allows users to retain access to buckets which they previously owned. If another user creates a new bucket with the same name, the previous owners can gain unauthorized read and write acces…
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Medium 6.5
Apache CloudStack: Any user can list backups that they should not have access to
The CloudStack Backup plugin has an improper authorization logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and has access to specific APIs can list backu…
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Medium 6.5
Apache CloudStack: Any user can create a new VM from backups they should not have access to
The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs u…
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Medium 6.5
Apache CloudStack: Domain/account resources limits not honored
Due to multiple time-of-check time-of-use race conditions in the resource count check and increment logic, as well as missing validations, users of the platform are able to exceed the allocation limits configured for their accounts/domains. This can be used b…
Revision history
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#2
Referenz(en) aufgenommen: EUVD-2026-28550, EUVD-2026-28549, EUVD-2025-209744, EUVD-2025-209743, EUVD-2025-209742, EUVD-2025-209741, EUVD-2025-209740
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#1
Initiale Fassung
References
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Apache CloudStack LTS Security Release vom 2026-05-07
https://cloudstack.apache.org/blog/security-release-advisory-4.20.3.0-4.22.0.1