Stonefly Storage Concentrator prior 8.0.4.22/8.0.4.29 HTTP debug.pl os command injection

Summaryinfo

A vulnerability identified as critical has been detected in Stonefly Storage Concentrator and Storage Concentrator Virtual Machine. This affects an unknown function of the file debug.pl of the component HTTP Handler. Performing a manipulation results in os command injection. This vulnerability is known as CVE-2026-56415. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Stonefly Storage Concentrator and Storage Concentrator Virtual Machine. It has been classified as very critical. This affects some unknown functionality of the file debug.pl of the component HTTP Handler. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is reachable without authentication. A remote attacker can submit a specially crafted HTTP request containing a malicious payload that is processed without adequate input sanitization, resulting in arbitrary command execution with root-level privileges on the underlying system.

The advisory is shared at cisa.gov. This vulnerability is uniquely identified as CVE-2026-56415 since 06/22/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/01/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 8.0.4.22 or 8.0.4.29 eliminates this vulnerability.

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Productinfo

Vendor

• Stonefly

Name

• Storage Concentrator
• Storage Concentrator Virtual Machine

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