Apache CloudStack up to 4.20.3.0/4.22.1.0 privileges management

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Apache CloudStack up to 4.20.3.0/4.22.1.0. The affected element is an unknown function. Performing a manipulation results in privileges management. This vulnerability is cataloged as CVE-2026-66722. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Apache CloudStack up to 4.20.3.0/4.22.1.0. This affects an unknown functionality. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2026-66722 since 07/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/21/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 4.20.3.1 or 4.22.1.1 eliminates this vulnerability.

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Productinfo

Type

• Cloud Software

Vendor

• Apache

Name

• CloudStack

Version

• 4.20.0
• 4.20.1
• 4.20.2
• 4.20.3.0
• 4.22.0
• 4.22.1.0

License

• open-source

Website

• Vendor: https://www.apache.org/

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