Description

HCL MyXalytics was affected by Potential DOS Vulnerability. It allows users to input data without any restriction on the number of characters which can impact system performance or availability.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "3.5",
  "pubDate": "2026-09-07T11:17:20.470Z",
  "pubdate": "2026-09-07T11:17:20.470Z",
  "executiveSummary": "HCL MyXalytics is susceptible to a Denial of Service (DoS) vulnerability arising from improper input validation regarding data length.\nThe vulnerability exists because the application accepts user-supplied data without enforcing maximum character constraints.\nAn attacker can exploit this by submitting excessively large payloads, leading to resource exhaustion, specifically memory or CPU consumption, which degrades system performance or results in complete service unavailability.\nThis vulnerability impacts the availability of HCL MyXalytics and does not require elevated privileges for initial exploitation if the input vector is accessible to standard users.\nThe risk implication is high, as it allows unauthenticated or low-privileged actors to disrupt mission-critical business intelligence operations through simple payload delivery.",
  "technicalDetails": "The root cause of this vulnerability is a failure in the application's input processing logic to implement buffer management or length validation mechanisms on user-defined input fields.\nWhen the application receives data, it processes the entire string without sanitization or boundary checks. By submitting a significantly large character stream, an attacker forces the application to allocate disproportionate system resources to process, parse, or store the incoming request.\nIn a typical attack flow, the adversary identifies an input field that triggers server-side processing—such as search queries, data submission forms, or API endpoints—and submits a payload exceeding the expected operational threshold. The server, lacking predefined constraints, attempts to commit the full payload to memory or database structures.\nThis operation leads to resource contention. If the system memory is exhausted, the application may enter an unresponsive state, trigger garbage collection cycles that cause high CPU utilization, or crash due to buffer overflow conditions and memory allocation failures. Consequently, the availability of the MyXalytics environment is compromised for legitimate users.\nThe vulnerability resides within the application's input validation component, which fails to act as a gatekeeper for incoming data streams. Exploitation can be achieved over the network if the affected interfaces are exposed. Depending on the architecture, the payload behavior may specifically target database write operations, query parsing routines, or logging functions that struggle to handle massive input volume.\nPost-exploitation impact includes the total disruption of service, denial of access for legitimate business users, and potential secondary impacts on dependent services if the host system becomes unstable or resource-starved."
}