Apache CloudStack: Improper Auth for Project Role CRUD (4.15-4.20.3.0/4.21-4.22.1.0)
CVE-2026-66722 Published on August 21, 2026
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.
Vulnerability Analysis
CVE-2026-66722 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-66722 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-66722
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Affected Versions
Apache Software Foundation Apache CloudStack:- Version 4.15.0.0, <= 4.20.3.0 is affected.
- Version 4.21.0.0, <= 4.22.1.0 is affected.