CVE-2026-0313 in Cortex XSOAR OS Query
Summary
by MITRE • 10/15/2026
A command injection vulnerability in Palo Alto Networks Cortex XSOAR and Cortex XSIAM OS Query content pack enables an authenticated administrator to execute arbitrary OS commands on remote endpoints.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 10/15/2026
The discovery of a critical command injection flaw within the Palo Alto Networks Cortex XSOAR and Cortex XSIAM operating system query content packs represents a significant compromise in the integrity of security orchestration, automation, and response platforms. This vulnerability specifically targets the mechanism used to execute OS-level queries against remote endpoints managed by these systems. The core technical issue stems from insufficient sanitization or validation of user-supplied input within the command execution module responsible for processing OS query requests. When an authenticated administrator submits a request containing specially crafted arguments, the application fails to properly escape special characters that have meaning in the underlying operating system shell environment. This allows the injected commands to be interpreted and executed by the host system rather than being treated as literal data or parameters intended for legitimate querying functions. The flaw is particularly severe because it leverages existing administrative privileges, which are typically granted only to trusted personnel responsible for managing security operations centers and incident response workflows.
From a technical perspective, this vulnerability aligns with CWE-78 Improper Neutralization of Special Elements used in an OS Command commonly known as command injection. The attacker exploits the lack of input validation by injecting shell metacharacters such as semicolons, ampersands, or pipe symbols into fields that are subsequently passed to system-level interpreters like bash or cmd.exe. Because Cortex XSOAR and Cortex XSIAM operate with elevated privileges to perform deep forensic analysis and remediation actions across an enterprise network, the successful exploitation of this flaw grants the attacker full control over the affected endpoints. This capability transforms a standard administrative interface into a powerful remote code execution vector, bypassing traditional perimeter defenses that might otherwise restrict access to these management consoles. The vulnerability exists within the content packs which are modular components designed to extend platform functionality, highlighting how third-party or community-contributed modules can introduce risk if their internal logic is not rigorously audited for secure coding practices.
The operational impact of this vulnerability is profound and potentially catastrophic for organizations relying on Cortex XSOAR or XSIAM for their security operations. An authenticated administrator who exploits this flaw can execute arbitrary commands with the same privileges as the service account running the platform, which often includes root or SYSTEM-level access depending on the deployment configuration. This enables the attacker to install persistent backdoors, exfiltrate sensitive data from endpoint memory and disk, disable logging mechanisms to cover their tracks, pivot laterally across the network by executing commands on other connected systems, or even deploy ransomware and destructive malware. The ability to execute arbitrary OS commands effectively neutralizes many of the security controls managed by the platform itself, as the attacker can manipulate the very tools designed to detect and respond to threats. This creates a scenario where the defense mechanism becomes an attack vector, undermining trust in the entire security infrastructure.
In terms of threat actor behavior, this vulnerability maps directly to ATT&CK technique T1059 Command and Scripting Interpreter, specifically sub-techniques involving shell commands such as sh or cmd.exe. Attackers can leverage this access to perform reconnaissance by enumerating system information, discover credentials stored in configuration files or memory dumps, and establish persistence through scheduled tasks or service modifications. The exploitation path is straightforward for any insider threat actor with administrative access who may have malicious intent, but it also poses a risk if an attacker gains temporary admin privileges through other means such as credential theft or session hijacking. Given the high privilege level required to trigger this vulnerability, the likelihood of widespread automated exploitation via external networks is low unless combined with another authentication bypass flaw; however, insider threats and compromised credentials remain significant vectors for abuse.
Mitigation strategies must focus on immediate remediation through vendor-provided updates as well as compensating controls in environments where patching may be delayed. Palo Alto Networks has released patches that address the input validation deficiencies within the affected content packs. Administrators should prioritize applying these updates to all Cortex XSOAR and Cortex XSIAM instances immediately upon availability. In addition to software remediation, organizations should enforce strict role-based access control policies to limit who holds administrative privileges over OS query functions. Implementing network segmentation can also help contain potential lateral movement if an endpoint is compromised via this vector. Security operations teams should monitor for unusual command execution patterns or unexpected outbound connections from managed endpoints that could indicate exploitation activity. Regular audits of content pack configurations and adherence to secure coding standards in custom playbook development are essential preventive measures against similar injection flaws in the future.