Account users are allowed by default to register templates to be downloaded directly to the primary storage for deploying instances using the KVM hypervisor. Due to missing file name sanitization, an attacker can register malicious templates to execute arbitrary code on the KVM hosts. This can result in the compromise of resource integrity and confidentiality, data loss, denial of service, and availability of the KVM-based infrastructure managed by CloudStack.


Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later, which fixes this issue.

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Fixes

Solution

No solution given by the vendor.


Workaround

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History

Sat, 09 May 2026 07:30:00 +0000

Type Values Removed Values Added
References

Fri, 08 May 2026 20:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*

Fri, 08 May 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 08 May 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache cloudstack
Vendors & Products Apache
Apache cloudstack

Fri, 08 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description Account users are allowed by default to register templates to be downloaded directly to the primary storage for deploying instances using the KVM hypervisor. Due to missing file name sanitization, an attacker can register malicious templates to execute arbitrary code on the KVM hosts. This can result in the compromise of resource integrity and confidentiality, data loss, denial of service, and availability of the KVM-based infrastructure managed by CloudStack. Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later, which fixes this issue.
Title Apache CloudStack: Unauthenticated Command Injection in Direct Download Templates
Weaknesses CWE-94
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-05-09T06:43:05.523Z

Reserved: 2026-01-28T22:03:17.222Z

Link: CVE-2026-25077

cve-icon Vulnrichment

Updated: 2026-05-08T17:47:50.651Z

cve-icon NVD

Status : Modified

Published: 2026-05-08T13:16:36.133

Modified: 2026-05-09T07:16:09.003

Link: CVE-2026-25077

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T20:00:12Z

Weaknesses