CVE-2026-66721

low Apache
CVSS v3 Base Score
2.7
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
EPSS Score
0.3%
Exploitation probability in 30 days
Top 81% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Published: August 21, 2026 (16 days ago)
Last Modified: August 27, 2026
Vendor: Apache
Source: NVD

Description

Missing authorization issue for domain admins in CloudStack's host tags listing functionality. Domain Admins, by default, have permission to call the listHostTags API, but the API returns host tags for every host in the environment without domain scoping. It should instead be restricted to only the hosts dedicated to that admin's domain. This issue affects Apache CloudStack: from 4.12.0.0 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.

CWE

CWE-862

Affected Products

apache cloudstack

References

🔗 lists.apache.org