CVE-2026-50222

*** Pendiente de traducción *** Missing Authorization, Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack&amp;#39;s Userdata reference APIs.<br /> <br /> Several userdata-related APIs in Apache CloudStack, including deleteUserData, linkUserDataToTemplate, resetUserDataForVirtualMachine, deployVirtualMachine, and updateVirtualMachine, exhibit missing or insufficient access control validation, potentially allowing cross-tenant/cross-account access to userdata resources that belong to other tenants.<br /> <br /> This issue affects Apache CloudStack: from 4.18.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.<br /> <br /> The deleteCniConfiguration API, introduced in 4.21.0.0, also exhibits similar behaviour and lacks access validation.<br /> <br /> Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.