Description

NVIDIA Infrastructure Controller for Linux contains a vulnerability where an attacker could cause an XML injection. A successful exploit of this vulnerability might lead to data tampering and denial of service.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.9",
  "pubDate": "2026-09-22T15:17:12.670Z",
  "pubdate": "2026-09-22T15:17:12.670Z",
  "executiveSummary": "The NVIDIA Infrastructure Controller for Linux is susceptible to an XML injection vulnerability resulting from improper neutralization of input data during XML parsing operations.\nThis vulnerability allows an unauthenticated or authenticated attacker to inject malicious XML content into the system, potentially leading to unauthorized data modification and service instability.\nThe core risk involves the manipulation of XML data structures, which may compromise the integrity of the controller's configuration or internal logic.\nSuccessful exploitation results in significant security implications, including data tampering, unauthorized state changes, and denial of service (DoS) conditions.\nThe impact is categorized as critical, as it affects the fundamental reliability and data consistency of the NVIDIA infrastructure management stack.\nThe vulnerability requires the attacker to have the ability to submit crafted input that is subsequently processed by the vulnerable XML parsing component.",
  "technicalDetails": "The vulnerability resides within the NVIDIA Infrastructure Controller for Linux's input handling mechanism, specifically where user-supplied data is incorporated into XML documents without adequate validation or sanitization.\nThe root cause is an insecure implementation of an XML parser that fails to effectively distinguish between legitimate data and control characters or structural tags. By manipulating the input stream to include unexpected XML entities, elements, or attributes, an attacker can alter the document object model (DOM) of the parsed data.\nThe attack flow commences with the attacker identifying an input vector that interfaces with the controller's XML processing engine. The attacker crafts a malicious payload containing XML injection sequences—such as breaking out of existing tags or injecting new elements—to mislead the parser. Because the controller process trusts the integrity of the input, it inadvertently executes or stores the injected XML structures.\nWhen the parser interprets this malicious input, the injected XML fragments can cause the application to perform unintended actions. For example, if the XML data drives business logic or security access control lists (ACLs), the attacker may manipulate the state of the controller to elevate privileges, bypass authorization checks, or overwrite critical configuration parameters.\nThe impact manifests in two primary forms: data tampering and denial of service. Data tampering occurs when the malicious input alters persistent settings or stored records within the controller's domain, leading to permanent corruption of internal states. A denial of service is triggered when the injected payload forces the XML parser into an error state, triggers an infinite loop, or causes an application crash due to malformed structural output that violates the expected schema definitions.\nExploitation does not necessarily require deep system-level access, provided that the targeted input vector is reachable via the network or through local interface channels. The vulnerability is fundamentally tied to the lack of strict input filtering and the failure to enforce robust schema validation, such as XML Schema Definition (XSD) enforcement, before parsing occurs."
}