Advisory severityHigh8.8Apache Software Foundation

High [CVE-2026-47359] Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Apache CloudStack's NAS backup provider plugin

This high-severity Apache Software Foundation advisory covers CVE-2026-47359 affecting Apache CloudStack.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-47359 Source published Aug 21, 2026Source updated Aug 27, 2026

VulniPulse record published Aug 21, 2026Record updated Aug 27, 2026

CVE-2026-47359

Affected products & platforms

Apache Software FoundationInfra & Gateways

Open source advisory

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Summary

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.

Affected versions

4.20.0.0 through 4.20.3.0
4.21.0.0 through 4.22.1.0.
through 4.22.1.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

4.20.3.1
4.22.1.1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-47359 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-47359NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
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Apache project downloads (fixed releases)
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