Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Apache CloudStack's NAS backup provider plugin. The addBackupRepository API (available since 4.20.0.0) and updateBackupRepository API (introduced in 4.22.0.0) accept unsanitized command options for the backup repository. A malicious operator account can exploit this to inject arbitrary commands that execute on the KVM hypervisor host when any account subsequently performs a backup restore. This issue affects Apache CloudStack: from 4.20.0.0 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.
History

Thu, 27 Aug 2026 00:15:00 +0000

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

Wed, 26 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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


Fri, 21 Aug 2026 13:45:00 +0000

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

Fri, 21 Aug 2026 08:45:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Apache CloudStack's NAS backup provider plugin. The addBackupRepository API (available since 4.20.0.0) and updateBackupRepository API (introduced in 4.22.0.0) accept unsanitized command options for the backup repository. A malicious operator account can exploit this to inject arbitrary commands that execute on the KVM hypervisor host when any account subsequently performs a backup restore. This issue affects Apache CloudStack: from 4.20.0.0 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.
Title Apache CloudStack: OS Command Injection due to unsanitized mount command
Weaknesses CWE-78
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-08-21T08:30:07.701Z

Updated: 2026-08-26T14:17:31.535Z

Reserved: 2026-05-19T14:09:26.916Z

Link: CVE-2026-47359

cve-icon Vulnrichment

Updated: 2026-08-21T13:28:51.757Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-21T09:16:38.000

Modified: 2026-08-27T00:06:21.860

Link: CVE-2026-47359

cve-icon Redhat

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