Apache CloudStack: OS Command Injection due to unsanitized mount command

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-47359
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-21 09:16:38 UTC
Updated2026-08-21 09:16:38 UTC
DescriptionImproper 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.

Risk And Classification

EPSS: 0.005130000 probability, percentile 0.416600000 (date 2026-08-21)

Problem Types: CWE-78 | CWE-78 CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache CloudStack affected 4.20.0.0 4.20.3.0 semver Not specified
CNA Apache Software Foundation Apache CloudStack affected 4.21.0.0 4.22.1.0 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc [email protected] lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: 김우석 <[email protected]> (en)

CNA: Łukasz Bawolski <[email protected]> (en)

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