Apache CloudStack - SAML Signature Exclusion

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-2026-59654

Apache CloudStack is affected by a resource leak in its scoped global configuration functionality, where database connections are not properly released after their effective lifetime. The issue impacts multiple management server modules, including Quota and Host-HA , and can lead to an eventual d...

EUVD-2026-63941

Missing Release of Resource after Effective Lifetime vulnerability in Apache CloudStack's scoped global configuration functionality. It affects different modules and plugins of the CloudStack management server, including Quota, Host-HA, etc., and may lead to eventual denial of service DoS scenari...

CVE-2026-66797

Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure. The addAnnotation and listAnnotation APIs perform an ownership check when an entity's UUID is specified, but fail to honor its result correctly. This lets any authenticated user...

CVE-2026-61400

Improper Neutralization of Special Elements used in a Command 'Command Injection' vulnerability in Apache CloudStack's run and get diagnostics functionality for the system VMs and virtual routers. An authenticated user holding the permissions required to invoke either getDiagnosticsData or...

CVE-2026-50112

SSRF via Metalink Mirror URL Resolution: An authenticated tenant can register a template pointing to an attacker-controlled metalink file containing internal targets. The Secondary Storage VM will retrieve the data and persist it as a template file, which can later be downloaded through normal...

CVE-2026-47359

Apache CloudStack 's NAS backup provider plugin is vulnerable to OS command injection via the addBackupRepository API (available since 4.20.0.0) and updateBackupRepository API (introduced in 4.22.0.0). These APIs accept unsanitized command options for the backup repository, allowing a malicious o...

EUVD-2026-63848

Improper Neutralization of Special Elements used in an OS Command 'OS Command Injection' vulnerability 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 command options f...

CVE-2026-50112 Apache CloudStack: RCE and SSRF in direct download, metalink and NFS templates

SSRF via Metalink Mirror URL Resolution: An authenticated tenant can register a template pointing to an attacker-controlled metalink file containing internal targets. The Secondary Storage VM will retrieve the data and persist it as a template file, which can later be downloaded through normal...

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...

EUVD-2026-63847

SSRF via Metalink Mirror URL Resolution: An authenticated tenant can register a template pointing to an attacker-controlled metalink file containing internal targets. The Secondary Storage VM will retrieve the data and persist it as a template file, which can later be downloaded through normal...

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 affected by a missing authorization vulnerability in several userdata-related APIs (deleteUserData , linkUserDataToTemplate , resetUserDataForVirtualMachine , deployVirtualMachine , updateVirtualMachine , and d...

EUVD-2026-63846

Missing Authorization, Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's Userdata reference APIs. Several userdata-related APIs in Apache CloudStack, including deleteUserData, linkUserDataToTemplate, resetUserDataForVirtualMachine, deployVirtualMachin...

CVE-2026-59085

Apache CloudStack contains a Server-Side Request Forgery (SSRF) vulnerability in its webhook module , exploitable via webhook delivery requests. The affected versions span 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 . An attacker who can influence webhook delivery targets may be able ...

EUVD-2026-63845

Server-Side Request Forgery SSRF vulnerability in Apache CloudStack's webhook module, exploitable via webhook delivery requests. This issue affects Apache CloudStack: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1....

CVE-2026-59655

Apache CloudStack 's OAuth authentication plugin is vulnerable to unauthenticated disclosure of OAuth provider client-secrets when listing OAuth providers. This allows an unauthorized actor to access sensitive credential material without authentication. The issue affects versions 4.19.0.0 through...

EUVD-2026-63844

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's OAuth authentication plugin while listing OAuth providers. This issue affects Apache CloudStack: from 4.19.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to...

EUVD-2026-63843

Cleartext Storage of Sensitive Information vulnerability in Apache CloudStack with AsyncJob storage in the database. This issue affects Apache CloudStack: from 4.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, whi...

CVE-2026-59657

Apache CloudStack stores sensitive information in cleartext within its AsyncJob database storage , exposing data to unauthorized access if the database is compromised. The vulnerability affects versions 4.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0 . The fix is available in versions 4.20.3...

EUVD-2026-63842

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's LDAP authentication plugin while listing LDAP providers. LDAP configurations can be listed by any authenticated user with access to the listLdapConfigurations API. By default, this API is available to...