CVE-2026-25199: Exposure of Sensitive Information to an Unauthorized Actor

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 setting, proxmoxvmid, to associate...

CVE-2026-25077: Improper Control of Generation of Code

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 arbitrary code on the KVM hosts. This can...

CVE-2025-69233: Time-of-check Time-of-use (TOCTOU) Race Condition

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 by an attacker to degrade the...

CVE-2025-66467: Incomplete Cleanup

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 access to it by using the previously...

CVE-2025-66172: Exposure of Private Personal Information to an Unauthorized Actor

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 from any other user's backups and...

CVE-2025-66171: Exposure of Private Personal Information to an Unauthorized Actor

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 using backups of any other user of the...

CVE-2025-66170: Incorrect Authorization

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 backups from any account in the environment...

PT-2026-38917

Name of the Vulnerable Software and Affected Versions Apache CloudStack versions prior to 4.20.3.0 Apache CloudStack versions prior to 4.22.0.1 Description Multiple time-of-check time-of-use TOCTOU race conditions—where a system checks a condition and then uses the result, but the condition chang...

PT-2026-38913

Name of the Vulnerable Software and Affected Versions CloudStack Backup plugin versions 4.21.0.0 through 4.22.0.0 Description The CloudStack Backup plugin contains improper authorization logic. Authenticated users in environments where this plugin is enabled can list backups from any account in t...

Apache CloudStack code injection vulnerability

Apache CloudStack is an IaaS cloud computing platform developed by the Apache Foundation in the United States. This platform is primarily used for deploying and managing large-scale virtual machine networks. Apache CloudStack has a code injection vulnerability, which stems from a lack of filename...

PT-2026-38918

Name of the Vulnerable Software and Affected Versions Apache CloudStack versions prior to 4.20.3.0 Apache CloudStack versions prior to 4.22.0.1 Description Account users can register templates for direct download to primary storage when deploying instances using the KVM hypervisor. Due to missing...

Apache CloudStack security vulnerabilities

Apache CloudStack is an IaaS cloud computing platform developed by the Apache Foundation in the United States. This platform is primarily used for deploying and managing large-scale virtual machine networks. Versions 4.21.0.0 and 4.22.0.0 of Apache CloudStack contain security vulnerabilities. The...

sb-poc-web

StackBill Deployer Web-based deployment portal for StackBill...

CVE-2022-26779

Apache CloudStack prior to 4.16.1.0 used insecure random number generation for project invitation tokens. If a project invite is created based only on an email address, a random token is generated. An attacker with knowledge of the project ID and the fact that the invite is sent, could generate...

CVE-2022-35741

Apache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entity XXE injection. This plugin is not enabled by default and the attacker would require that this plugin be enabled to exploit the vulnerability. When...

CVE-2024-41107

The CloudStack SAML authentication disabled by default does not enforce signature check. In CloudStack environments where SAML authentication is enabled, an attacker that initiates CloudStack SAML single sign-on authentication can bypass SAML authentication by submitting a spoofed SAML response...

CVE-2024-39864

The CloudStack integration API service allows running its unauthenticated API server usually on port 8096 when configured and enabled via integration.api.port global setting for internal portal integrations and for testing purposes. By default, the integration API service port is disabled and is...

Apache CloudStack Access Control Error Vulnerability (CNVD-2025-30565)

Apache CloudStack is a suite of Infrastructure as a Service IaaS cloud computing platforms from the Apache Foundation in the United States. The platform is primarily used to deploy and manage large networks of virtual machines. An Access Control Error vulnerability exists in Apache CloudStack tha...

CVE-2025-59454

In Apache CloudStack, a gap in access control checks affected the APIs - createNetworkACL - listNetworkACLs - listResourceDetails - listVirtualMachinesUsageHistory - listVolumesUsageHistory While these APIs were accessible only to authorized users, insufficient permission validation meant that...

CVE-2025-59302

In Apache CloudStack improper control of generation of code 'Code Injection' vulnerability is found in the following APIs which are accessible only to admins. quotaTariffCreate quotaTariffUpdate createSecondaryStorageSelector updateSecondaryStorageSelector updateHost updateStorage This issue...