CVE-2026-66797

Apache CloudStack versions 4.15.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to an improper access control flaw in the annotation functionality . The addAnnotation and listAnnotation APIs perform an ownership check when an entity's UUID is provided but fail to honor the resul...

CVE-2026-59654

Apache CloudStack's scoped global configuration functionality suffers from a resource leak (database connections not released after their effective lifetime), affecting modules such as Quota and Host-HA on the management server. Over time, the accumulated leak can lead to an eventual denial of se...

CVE-2026-50112

Apache CloudStack versions 4.14.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to SSRF and RCE . An authenticated tenant can register a template pointing to an attacker-controlled metalink file , allowing the Secondary Storage VM to retrieve and persist data from internal targe...

CVE-2026-61397

Apache CloudStack is impacted by a vulnerability where sensitive information is exposed to an unauthorized actor. The issue resides within the OAuth2 authentication plugin and the Google OAuth integration . Specifically, the vulnerability involves an OAuth2 Token Cross-Request Leak . Affected ver...

CVE-2026-25077

Apache CloudStack is vulnerable to an unauthenticated command injection due to missing file name sanitization when users register templates for direct download to primary storage for KVM hypervisor deployments. An attacker can register malicious templates to execute arbitrary code on KVM hosts, p...

CVE-2026-47359

Apache CloudStack is vulnerable to an OS Command Injection in its NAS backup provider plugin . The addBackupRepository (available since 4.20.0.0) and updateBackupRepository (introduced in 4.22.0.0) APIs accept unsanitized command options for the backup repository. A malicious operator account can...

CVE-2026-61400

Apache CloudStack versions 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to a Command Injection flaw in the run and get diagnostics functionality for system VMs and virtual routers. An authenticated user with the necessary permissions can invoke the getDiagnosticsData or ...

CVE-2026-25199

Apache CloudStack versions 4.21.0.0 through 4.22.0.0 are vulnerable to a flaw in the Proxmox extension that allows for unauthorized cross-tenant access. The extension fails to validate the user-editable instance setting proxmox_vmid against tenant ownership. Because Proxmox VM IDs are predictable...

CVE-2026-59655

Apache CloudStack is vulnerable to an Exposure of Sensitive Information to an Unauthorized Actor in its OAuth authentication plugin . The issue occurs specifically while listing OAuth providers, which can lead to the disclosure of unauthenticated OAuth provider client-secrets . This affects versi...

CVE-2025-66467

CVE-2025-66467 affects Apache CloudStack in scenarios where MinIO policy cleanup is not performed on bucket deletion. The issue allows previous bucket owners to retain access to buckets they formerly owned: if another user creates a bucket with the same name, those prior owners can gain unauthori...

CVE-2026-59780

Apache CloudStack is vulnerable to Exposure of Sensitive Information to an Unauthorized Actor in its LDAP authentication plugin . The root cause is that the listLdapConfigurations API allows any authenticated user to list LDAP configurations; by default, this API is accessible to all default role...

CVE-2026-61398

Apache CloudStack is vulnerable to a Cross-Site Scripting (XSS) issue due to improper encoding or escaping of output in the user interface. This vulnerability is triggered when using the Instance Reset Password functionality. The flaw allows for the injection of malicious scripts into web pages v...

CVE-2026-61422

An authenticated Server-Side Request Forgery (SSRF) vulnerability exists in Apache CloudStack versions 4.20.3.0 and 4.21.0.0 through 4.22.1.0 . The flaw resides in the template and ISO registration functionality , where the system performs a live HTTP HEAD/GET call to determine file size for seco...

CVE-2025-66171

The CloudStack Backup plugin in Apache CloudStack versions 4.21.0.0 and 4.22.0.0 contains improper access logic . An authenticated user with access to specific APIs can exploit this flaw to create new virtual machines using the backup data of any other user within the environment. To remediate th...

CVE-2025-69233

CVE-2025-69233 affects Apache CloudStack and describes time-of-check/time-of-use race conditions in the resource count check and increment logic, along with missing validations, that allow users to exceed allocation limits for accounts/domains. This can enable an attacker to degrade infrastructur...

CVE-2026-59085

A Server-Side Request Forgery (SSRF) vulnerability exists in the webhook module of Apache CloudStack . This flaw allows an attacker to induce the server-side application to make requests to unintended locations via webhook delivery requests . The vulnerability affects versions 4.20.0.0 through 4....

CVE-2026-62440

An Improper Access Control vulnerability exists in the Kubernetes Service (CKS) plugin of Apache CloudStack , affecting versions 4.21.0.0 through 4.22.1.0 . This flaw allows for cross-tenant manipulation of the Kubernetes cluster specifically during the processes of adding and removing nodes . To...

CVE-2026-50222

Apache CloudStack versions 4.18.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to missing authorization and insufficient access control validation within several userdata-related APIs. Specifically, the endpoints deleteUserData, linkUserDataToTemplate, resetUserDataForVirtualMa...

CVE-2025-66170

The CloudStack Backup plugin in versions 4.21.0.0 and 4.22.0.0 contains an improper authorization logic vulnerability. Authenticated users with account access in CloudStack environments where this plugin is enabled can leverage specific APIs to list backups from any account within the environment...

CVE-2025-66172

The CloudStack Backup plugin versions 4.21.0.0 and 4.22.0.0 contain an improper access logic vulnerability. This flaw allows any authenticated user with access to specific APIs to restore a volume from another user's backups and attach it to their own virtual machines in environments where the pl...

CVE-2026-59799

Apache CloudStack is affected by an improper privilege management vulnerability in its Two-factor authentication plugin . The flaw allows for a bypass of the two-factor authentication disable flow due to a missing privilege check. This issue impacts versions 4.18.0.0 through 4.20.3.0 and 4.21.0.0...

CVE-2026-66721

Apache CloudStack versions 4.12.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to a missing authorization issue in the listHostTags API. While Domain Admins are permitted to call this API, it fails to apply domain scoping, returning host tags for every host in the entire enviro...

CVE-2026-61399

Apache CloudStack is affected by an Improper Encoding or Escaping of Output vulnerability in its UI when using the Lock User functionality . This flaw leads to a Cross-Site Scripting (XSS) issue, which allows an attacker to inject malicious scripts into web pages viewed by other users. The vulner...

CVE-2026-68745

Apache CloudStack versions 4.20.3.0 and 4.22.1.0 are vulnerable to certificate validation failures within the SAML authentication process. This flaw allows a malicious agent to forge a SAML response to the management server by either spoofing the Identity Provider (IdP) IP address or registering ...

CVE-2026-59657

Apache CloudStack versions 4.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to a Cleartext Storage of Sensitive Information flaw. The issue occurs when using AsyncJob storage in the database, where sensitive information is stored without proper encryption. This could lead to un...

CVE-2026-65613

Apache CloudStack versions 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are affected by an Exposure of Sensitive Information to an Unauthorized Actor vulnerability. The flaw resides in the Webhook module and occurs specifically while listing and deleting deliveries , potentially allowi...

CVE-2026-66722

Apache CloudStack versions 4.15.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 are vulnerable to an improper authorization flaw during CRUD operations on Project Roles and Project Role permissions. The system verifies that a caller is a Domain Admin but fails to validate whether the target pr...