CVE-2026-44098 in CHARX SEC-3150
Summary
by MITRE • 07/30/2026
This vulnerability allows an unauthenticated remote attacker with control over the OCPP backend via firewall-bypass to perform an OS command injection, resulting in the execution of arbitrary commands as the limited user charx-oa. Charging could be interrupted.
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical security flaw in the Open Charge Point Protocol (OCPP) implementation that enables remote code execution through improper input validation and command construction. The vulnerability exists within the backend processing layer where user-supplied data is directly incorporated into system commands without adequate sanitization or parameterization. Attackers with network access to the OCPP backend can exploit this weakness by crafting malicious payloads that bypass firewall protections, allowing them to inject arbitrary operating system commands into the processing pipeline. The attack surface is particularly concerning as it targets the limited user account charx-oa which typically has restricted privileges but still maintains access to critical charging infrastructure components.
The technical exploitation occurs through command injection techniques where attacker-controlled input is concatenated directly into shell execution calls within the OCPP backend service. This flaw falls under CWE-78 which specifically addresses OS Command Injection vulnerabilities, making it a well-documented and dangerous class of security weakness. The vulnerability's impact extends beyond simple code execution as it can disrupt charging operations by executing commands that manipulate the charging process or even shut down critical infrastructure components. The limited user context charx-oa provides a constrained execution environment but still allows for significant operational disruption and potential escalation paths.
From an operational perspective, this vulnerability creates substantial risk for electric vehicle charging networks as it enables attackers to interrupt charging sessions at will, potentially causing service degradation or complete outage of charging stations. The firewall bypass requirement indicates that organizations may have assumed network segmentation was sufficient protection, but this assumption proves flawed when attackers can leverage legitimate backend access points. The disruption potential includes denial-of-service scenarios where charging operations are halted, financial losses due to interrupted transactions, and potential safety concerns if charging processes are manipulated in ways that could affect vehicle battery management systems.
Organizations should implement immediate mitigations including input validation at all entry points to prevent command injection attacks, implementing proper parameterization of system calls, and strengthening network segmentation controls to prevent unauthorized access to backend services. The implementation of web application firewalls and runtime application self-protection mechanisms can provide additional layers of defense against such attacks. Regular security assessments should include testing for command injection vulnerabilities in all backend services that handle user input, particularly those operating with elevated privileges. This vulnerability demonstrates the importance of following secure coding practices as outlined in the OWASP Top Ten and aligns with ATT&CK technique T1059 which covers command and scripting interpreter categories. The specific nature of this flaw requires comprehensive logging and monitoring to detect potential exploitation attempts, as well as regular security patching of all backend components that process OCPP communications.