CVE-2026-66722: Apache CloudStack: ProjectRole & ProjectRolePermission authorization issue
Improper authorization for CRUD operations on Project Roles and Project Role permissions for domain admins in CloudStack.
A Domain Admin can create, update, delete, and list project roles and project role permissions for projects in any domain, not just their own. The check only confirms the caller is a Domain Admin, without verifying whether the target project belongs to their domain or subdomain. This allows a malicious Domain Admin to tamper with project roles and permissions across unrelated domains.
This issue affects Apache CloudStack: from 4.15.0.0 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, which fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache CloudStackto a version that resolves this vulnerability.Fixed in 4.20.3.1 - Upgrade
Upgrade
Apache CloudStackto a version that resolves this vulnerability.Fixed in 4.22.1.1
Event History
Frequently Asked Questions
Who can exploit this issue?
An authenticated CloudStack Domain Admin can exploit it. The flaw lets that administrator operate on project roles and project-role permissions belonging to projects in unrelated domains, rather than being restricted to their own domain or subdomains.
Are standard Domain Admin permissions sufficient for exploitation?
Yes. The affected authorization check verifies only that the caller is a Domain Admin; it does not verify that the target project is in the caller's domain or subdomain.
What actions can an attacker perform across unrelated domains?
A malicious Domain Admin can create, update, delete, and list project roles and project-role permissions for projects in any domain. This can allow them to tamper with role and permission assignments outside their intended administrative scope.
Which versions should be remediated?
Affected releases are 4.15.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0. Upgrade to 4.20.3.1 or 4.22.1.1, or a later version.