CVE-2026-25077

CVE-2026-25077 affects Apache CloudStack with KVM deployments. Due to missing file name sanitization, account users can register templates for direct download to primary storage, enabling an attacker to execute arbitrary code on KVM hosts. This can compromise resource integrity and confidentialit...

CVE-2026-25199

The CVE describes a vulnerability in the Proxmox extension for Apache CloudStack (affecting 4.21.0.0–4.22.0.0) where the user-editable proxmox_vmid setting is not validated against tenant ownership. An unauthenticated attacker can modify proxmox_vmid to reference a VM owned by another account, gr...

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 affected by two related vulnerabilities in template download handling. When a tenant registers a VM template with directDownload=true pointing to a .metalink file, the management server fetches the metalink XML...

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-2026-66797

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

CVE-2026-61397

Apache CloudStack 's OAuth2 authentication plugin and Google OAuth integration are affected by an Exposure of Sensitive Information to an Unauthorized Actor vulnerability, identified as an OAuth2 Token Cross-Request Leak . The issue affects versions 4.19.0.0 through 4.20.3.0 and 4.21.0.0 through ...

CVE-2026-47359

An OS Command Injection vulnerability exists in Apache CloudStack's NAS backup provider plugin . The addBackupRepository API (available since 4.20.0.0) and updateBackupRepository API (introduced in 4.22.0.0) accept unsanitized mount command options for backup repositories. A malicious operator ac...

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-2025-66171

CVE-2025-66171 affects the CloudStack Backup plugin in CloudStack 4.21.0.0 and 4.22.0.0, where an improper access logic allows any authenticated user with access to specific APIs to create new VMs using backups belonging to other users. Public docs from NVD/CVE and EUVD- ENISA reiterate upgrade g...

CVE-2026-61400

Apache CloudStack is affected by a command injection vulnerability in the getDiagnosticsData and runDiagnostics APIs used for system VM and Virtual Router diagnostics. An authenticated user with Admin role permissions can achieve arbitrary command execution as root on the affected instances, resu...

CVE-2025-66172

The CVE pertains to CloudStack’s Backup plugin, affected in versions 4.21.0.0 to 4.22.0.0, where improper access logic allows any authenticated user in a CloudStack 4.21.0.0+ environment (with the plugin enabled and API access) to restore a volume from another user’s backups and attach it to thei...

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-2026-59085

A Server-Side Request Forgery (SSRF) vulnerability in Apache CloudStack's webhook module allows exploitation via webhook delivery requests, requiring no authentication and no user interaction. Affected versions are 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 . The CVSS v3.1 score is 9...

CVE-2026-59655

Apache CloudStack's OAuth authentication plugin exposes OAuth provider client secrets to unauthenticated actors when listing OAuth providers. This information disclosure vulnerability affects versions 4.19.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 , and is rated CVSS 7.5 (HIGH) with a ne...

CVE-2025-66170

The CVE affects the CloudStack Backup plugin (versions 4.21.0.0 and 4.22.0.0). An improper authorization logic lets any authenticated user with access to the plugin’s APIs list backups from any account, though they cannot view the backup contents. The issue is resolved by upgrading to version 4.2...

CVE-2026-68745

Apache CloudStack versions 4.20.3.0 and 4.22.1.0 (all platforms) suffer from certificate validation failures in their SAML authentication flow. The root cause is that SAML2 signature validation is silently skipped when the Identity Provider (IdP) is configured without a certificate. This allows a...

CVE-2026-50222

Apache CloudStack userdata-related APIs (deleteUserData , linkUserDataToTemplate , resetUserDataForVirtualMachine , deployVirtualMachine , and updateVirtualMachine ) exhibit missing or insufficient access control validation , potentially allowing cross-tenant/cross-account access to userdata reso...

CVE-2026-61398

Apache CloudStack is affected by a Cross-Site Scripting (XSS) vulnerability (Improper Encoding or Escaping of Output) in the Instance Reset Password functionality of its UI. The flaw allows a remote, unauthenticated attacker to inject malicious scripts via the reset password feature, with high im...

CVE-2026-62440

CVE-2026-62440 is an Improper Access Control vulnerability in Apache CloudStack's Kubernetes Service (CKS) plugin . It allows cross-tenant manipulation of a Kubernetes cluster during node add/remove operations, meaning one tenant can affect another tenant's cluster. Affected versions are 4.21.0.0...

CVE-2026-59657

CVE-2026-59657 is a Cleartext Storage of Sensitive Information vulnerability in Apache CloudStack 's AsyncJob database storage. The issue allows sensitive information to be exposed in plaintext within the database. Affected versions span 4.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 . The ...

CVE-2026-61422

Apache CloudStack (versions 4.20.3.0 and 4.21.0.0 through 4.22.1.0) is affected by an authenticated pre-validation SSRF in its template and ISO registration functionality. When a user registers a template or ISO, CloudStack issues a live HTTP HEAD/GET request to determine file size for secondary ...

CVE-2026-59780

Apache CloudStack 's LDAP authentication plugin exposes sensitive LDAP provider configuration details through the listLdapConfigurations API, which is accessible by default to all standard user roles. This affects versions 4.2.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 . An attacker with ...

CVE-2026-59799

Apache CloudStack is affected by an improper privilege management flaw in its Two-Factor Authentication plugin , specifically a missing privilege check in the 2FA disable flow that allows it to be bypassed. The vulnerability affects versions 4.18.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0...

CVE-2026-61399

Apache CloudStack is affected by an Improper Encoding or Escaping of Output vulnerability (classified as Cross-Site Scripting ) in the UI Lock User Functionality . The flaw allows an attacker with high privileges to inject unescaped output when locking a user, with the XSS executing in a changed ...

CVE-2026-66722

CVE-2026-66722 is an improper authorization flaw in Apache CloudStack affecting versions 4.15.0.0–4.20.3.0 and 4.21.0.0–4.22.1.0 . The root cause is that CRUD operations on Project Roles and Project Role Permissions only verify the caller is a Domain Admin, without checking whether the target pro...

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 access control flaw in the Webhook module . The issue allows an unauthorized actor to list and delete webhook deliveries , leading to exposure of sensitive information . The vulnerability require...

CVE-2026-66721

Apache CloudStack has a missing authorization flaw in its listHostTags API . Domain Admins can invoke this API by default, but the endpoint returns host tags for every host in the environment rather than being scoped to the admin's own domain. This exposes host tag information across domain bound...